157972762 has 4 divisors (see below), whose sum is σ = 236959146. Its totient is φ = 78986380.

The previous prime is 157972751. The next prime is 157972777. The reversal of 157972762 is 267279751.

157972762 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 144216081 + 13756681 = 12009^2 + 3709^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39493189 + ... + 39493192.

Almost surely, 2^157972762 is an apocalyptic number.

157972762 is a deficient number, since it is larger than the sum of its proper divisors (78986384).

157972762 is an equidigital number, since it uses as much as digits as its factorization.

157972762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78986383.

The product of its digits is 370440, while the sum is 46.

The square root of 157972762 is about 12568.7215738117. The cubic root of 157972762 is about 540.5809499877.

The spelling of 157972762 in words is "one hundred fifty-seven million, nine hundred seventy-two thousand, seven hundred sixty-two".