157474984 has 8 divisors (see below), whose sum is σ = 295265610. Its totient is φ = 78737488.

The previous prime is 157474931. The next prime is 157475023. The reversal of 157474984 is 489474751.

It can be written as a sum of positive squares in only one way, i.e., 93122500 + 64352484 = 9650^2 + 8022^2 .

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

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, 9842179 + ... + 9842194.

Almost surely, 2^157474984 is an apocalyptic number.

It is an amenable number.

157474984 is a deficient number, since it is larger than the sum of its proper divisors (137790626).

157474984 is a wasteful number, since it uses less digits than its factorization.

157474984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19684379 (or 19684375 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The square root of 157474984 is about 12548.9036971363. The cubic root of 157474984 is about 540.0125557209.

The spelling of 157474984 in words is "one hundred fifty-seven million, four hundred seventy-four thousand, nine hundred eighty-four".