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158404141 = 73137109181
BaseRepresentation
bin10010111000100…
…00111000101101
3102001001202122001
421130100320231
5311022413031
623415052301
73632261440
oct1134207055
9361052561
10158404141
1181462415
1245071091
1326a8227c
1417075657
15dd8e861
hex9710e2d

158404141 has 32 divisors (see below), whose sum is σ = 194754560. Its totient is φ = 125971200.

The previous prime is 158404133. The next prime is 158404153. The reversal of 158404141 is 141404851.

It is a 4-Lehmer number, since φ(158404141) divides (158404141-1)4.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 158404141 - 23 = 158404133 is a prime.

It is a deceptive number, since it divides R158404140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158405141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 875071 + ... + 875251.

It is an arithmetic number, because the mean of its divisors is an integer number (6086080).

It is a Poulet number, since it divides 2158404140-1.

Almost surely, 2158404141 is an apocalyptic number.

It is an amenable number.

158404141 is a deficient number, since it is larger than the sum of its proper divisors (36350419).

158404141 is a wasteful number, since it uses less digits than its factorization.

158404141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 158404141 is about 12585.8706889909. The cubic root of 158404141 is about 541.0725607452.

Adding to 158404141 its reverse (141404851), we get a palindrome (299808992).

The spelling of 158404141 in words is "one hundred fifty-eight million, four hundred four thousand, one hundred forty-one".

Divisors: 1 7 31 37 109 181 217 259 763 1147 1267 3379 4033 5611 6697 8029 19729 23653 28231 39277 46879 125023 138103 207607 611599 729973 875161 1453249 4281193 5109811 22629163 158404141