157904158 has 8 divisors (see below), whose sum is σ = 239029560. Its totient is φ = 78227640.

The previous prime is 157904147. The next prime is 157904167. The reversal of 157904158 is 851409751.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×157904158² = 49867446227377928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157904158.

It is a congruent number.

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, 361948 + ... + 362383.

It is an arithmetic number, because the mean of its divisors is an integer number (29878695).

Almost surely, 2^157904158 is an apocalyptic number.

157904158 is a deficient number, since it is larger than the sum of its proper divisors (81125402).

157904158 is a wasteful number, since it uses less digits than its factorization.

157904158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724442.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 157904158 is about 12565.9921215955. The cubic root of 157904158 is about 540.5026846276.

The spelling of 157904158 in words is "one hundred fifty-seven million, nine hundred four thousand, one hundred fifty-eight".