157278964 has 12 divisors (see below), whose sum is σ = 275782500. Its totient is φ = 78483968.

The previous prime is 157278929. The next prime is 157279007. The reversal of 157278964 is 469872751.

It can be written as a sum of positive squares in 2 ways, for example, as 47196900 + 110082064 = 6870^2 + 10492^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36589 + ... + 40660.

It is an arithmetic number, because the mean of its divisors is an integer number (22981875).

Almost surely, 2^157278964 is an apocalyptic number.

It is an amenable number.

157278964 is a deficient number, since it is larger than the sum of its proper divisors (118503536).

157278964 is a wasteful number, since it uses less digits than its factorization.

157278964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77762 (or 77760 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 157278964 is about 12541.0910211193. The cubic root of 157278964 is about 539.7883990329.

The spelling of 157278964 in words is "one hundred fifty-seven million, two hundred seventy-eight thousand, nine hundred sixty-four".