157938578 has 16 divisors (see below), whose sum is σ = 272821824. Its totient is φ = 67170480.

The previous prime is 157938563. The next prime is 157938581. The reversal of 157938578 is 875839751.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41225 + ... + 44892.

It is an arithmetic number, because the mean of its divisors is an integer number (17051364).

Almost surely, 2^157938578 is an apocalyptic number.

157938578 is a deficient number, since it is larger than the sum of its proper divisors (114883246).

157938578 is a wasteful number, since it uses less digits than its factorization.

157938578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86257.

The product of its digits is 2116800, while the sum is 53.

The square root of 157938578 is about 12567.3616165049. The cubic root of 157938578 is about 540.5419547583.

The spelling of 157938578 in words is "one hundred fifty-seven million, nine hundred thirty-eight thousand, five hundred seventy-eight".