157613857 has 2 divisors, whose sum is σ = 157613858. Its totient is φ = 157613856.

The previous prime is 157613849. The next prime is 157613893. The reversal of 157613857 is 758316751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152374336 + 5239521 = 12344^2 + 2289^2 .

It is a cyclic number.

It is not a de Polignac number, because 157613857 - 2³ = 157613849 is a prime.

It is not a weakly prime, because it can be changed into another prime (157613837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78806928 + 78806929.

It is an arithmetic number, because the mean of its divisors is an integer number (78806929).

Almost surely, 2^157613857 is an apocalyptic number.

It is an amenable number.

157613857 is a deficient number, since it is larger than the sum of its proper divisors (1).

157613857 is an equidigital number, since it uses as much as digits as its factorization.

157613857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 43.

The square root of 157613857 is about 12554.4357499650. The cubic root of 157613857 is about 540.1712499839.

The spelling of 157613857 in words is "one hundred fifty-seven million, six hundred thirteen thousand, eight hundred fifty-seven".