157468978 has 8 divisors (see below), whose sum is σ = 236269980. Its totient is φ = 78712320.

The previous prime is 157468963. The next prime is 157469009. The reversal of 157468978 is 879864751.

It can be written as a sum of positive squares in 2 ways, for example, as 157326849 + 142129 = 12543^2 + 377^2 .

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

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, 18 + ... + 17746.

Almost surely, 2^157468978 is an apocalyptic number.

157468978 is a deficient number, since it is larger than the sum of its proper divisors (78801002).

157468978 is a wasteful number, since it uses less digits than its factorization.

157468978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22172.

The product of its digits is 3386880, while the sum is 55.

The square root of 157468978 is about 12548.6643910816. The cubic root of 157468978 is about 540.0056903836.

The spelling of 157468978 in words is "one hundred fifty-seven million, four hundred sixty-eight thousand, nine hundred seventy-eight".