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157156459 is a prime number
BaseRepresentation
bin10010101111000…
…00010001101011
3101221201101010121
421113200101223
5310213001314
623332224111
73615544045
oct1127402153
9357641117
10157156459
118078aa79
124476b037
13267363b5
1416c2ca95
15dbe4d24
hex95e046b

157156459 has 2 divisors, whose sum is σ = 157156460. Its totient is φ = 157156458.

The previous prime is 157156411. The next prime is 157156499. The reversal of 157156459 is 954651751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157156459 - 27 = 157156331 is a prime.

It is not a weakly prime, because it can be changed into another prime (157156499) 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 as a sum of consecutive naturals, namely, 78578229 + 78578230.

It is an arithmetic number, because the mean of its divisors is an integer number (78578230).

Almost surely, 2157156459 is an apocalyptic number.

157156459 is a deficient number, since it is larger than the sum of its proper divisors (1).

157156459 is an equidigital number, since it uses as much as digits as its factorization.

157156459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 43.

The square root of 157156459 is about 12536.2059252391. The cubic root of 157156459 is about 539.6482150941.

The spelling of 157156459 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, four hundred fifty-nine".