157992651 has 6 divisors (see below), whose sum is σ = 228211620. Its totient is φ = 105328428.

The previous prime is 157992643. The next prime is 157992671. The reversal of 157992651 is 156299751.

157992651 is a `hidden beast` number, since 1 + 579 + 9 + 26 + 51 = 666.

It is not a de Polignac number, because 157992651 - 2³ = 157992643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157992597 and 157992606.

It is not an unprimeable number, because it can be changed into a prime (157992641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8777361 + ... + 8777378.

It is an arithmetic number, because the mean of its divisors is an integer number (38035270).

Almost surely, 2^157992651 is an apocalyptic number.

157992651 is a deficient number, since it is larger than the sum of its proper divisors (70218969).

157992651 is a wasteful number, since it uses less digits than its factorization.

157992651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17554745 (or 17554742 counting only the distinct ones).

The product of its digits is 170100, while the sum is 45.

The square root of 157992651 is about 12569.5127590532. The cubic root of 157992651 is about 540.6036356777.

The spelling of 157992651 in words is "one hundred fifty-seven million, nine hundred ninety-two thousand, six hundred fifty-one".