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156135161 = 7131715771
BaseRepresentation
bin10010100111001…
…10111011111001
3101212210111011202
421103212323321
5304432311121
623254303545
73604061360
oct1123467371
9355714152
10156135161
1180152726
1244357bb5
1326469590
1416a447d7
15da9240b
hex94e6ef9

156135161 has 8 divisors (see below), whose sum is σ = 192166464. Its totient is φ = 123535440.

The previous prime is 156135139. The next prime is 156135167. The reversal of 156135161 is 161531651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156135161 - 26 = 156135097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156135167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857795 + ... + 857976.

It is an arithmetic number, because the mean of its divisors is an integer number (24020808).

Almost surely, 2156135161 is an apocalyptic number.

It is an amenable number.

156135161 is a deficient number, since it is larger than the sum of its proper divisors (36031303).

156135161 is a wasteful number, since it uses less digits than its factorization.

156135161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715791.

The product of its digits is 2700, while the sum is 29.

The square root of 156135161 is about 12495.4055956579. The cubic root of 156135161 is about 538.4766865006.

The spelling of 156135161 in words is "one hundred fifty-six million, one hundred thirty-five thousand, one hundred sixty-one".

Divisors: 1 7 13 91 1715771 12010397 22305023 156135161