157731692 has 12 divisors (see below), whose sum is σ = 290558520. Its totient is φ = 74714976.

The previous prime is 157731653. The next prime is 157731713. The reversal of 157731692 is 296137751.

It is a super-2 number, since 2×157731692² = 49758573322365728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1037633 + ... + 1037784.

It is an arithmetic number, because the mean of its divisors is an integer number (24213210).

Almost surely, 2^157731692 is an apocalyptic number.

It is an amenable number.

157731692 is a deficient number, since it is larger than the sum of its proper divisors (132826828).

157731692 is a wasteful number, since it uses less digits than its factorization.

157731692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075440 (or 2075438 counting only the distinct ones).

The product of its digits is 79380, while the sum is 41.

The square root of 157731692 is about 12559.1278359606. The cubic root of 157731692 is about 540.3058304174.

The spelling of 157731692 in words is "one hundred fifty-seven million, seven hundred thirty-one thousand, six hundred ninety-two".