157156497 has 8 divisors (see below), whose sum is σ = 232824480. Its totient is φ = 104770980.

The previous prime is 157156459. The next prime is 157156499. The reversal of 157156497 is 794651751.

157156497 is a `hidden beast` number, since 1 + 5 + 7 + 156 + 497 = 666.

It is not a de Polignac number, because 157156497 - 2¹¹ = 157154449 is a prime.

It is a super-2 number, since 2×157156497² = 49396329098622018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157156499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2910279 + ... + 2910332.

It is an arithmetic number, because the mean of its divisors is an integer number (29103060).

Almost surely, 2^157156497 is an apocalyptic number.

It is an amenable number.

157156497 is a deficient number, since it is larger than the sum of its proper divisors (75667983).

157156497 is an equidigital number, since it uses as much as digits as its factorization.

157156497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820620 (or 5820614 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 157156497 is about 12536.2074408491. The cubic root of 157156497 is about 539.6482585892.

The spelling of 157156497 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, four hundred ninety-seven".