157992008 has 8 divisors (see below), whose sum is σ = 296235030. Its totient is φ = 78996000.

The previous prime is 157991959. The next prime is 157992031. The reversal of 157992008 is 800299751.

157992008 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 151831684 + 6160324 = 12322^2 + 2482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×157992008² = 49922949183744128, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9874493 + ... + 9874508.

Almost surely, 2^157992008 is an apocalyptic number.

It is an amenable number.

157992008 is a deficient number, since it is larger than the sum of its proper divisors (138243022).

157992008 is a wasteful number, since it uses less digits than its factorization.

157992008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19749007 (or 19749003 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 157992008 is about 12569.4871812656. The cubic root of 157992008 is about 540.6029022921.

The spelling of 157992008 in words is "one hundred fifty-seven million, nine hundred ninety-two thousand, eight".