157797712 has 20 divisors (see below), whose sum is σ = 309171060. Its totient is φ = 78011648.

The previous prime is 157797709. The next prime is 157797721. The reversal of 157797712 is 217797751.

157797712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38638656 + 119159056 = 6216^2 + 10916^2 .

It is a congruent number.

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, 53983 + ... + 56830.

It is an arithmetic number, because the mean of its divisors is an integer number (15458553).

Almost surely, 2^157797712 is an apocalyptic number.

It is an amenable number.

157797712 is a deficient number, since it is larger than the sum of its proper divisors (151373348).

157797712 is a wasteful number, since it uses less digits than its factorization.

157797712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110910 (or 110904 counting only the distinct ones).

The product of its digits is 216090, while the sum is 46.

The square root of 157797712 is about 12561.7559282132. The cubic root of 157797712 is about 540.3812031698.

The spelling of 157797712 in words is "one hundred fifty-seven million, seven hundred ninety-seven thousand, seven hundred twelve".