157116977 has 2 divisors, whose sum is σ = 157116978. Its totient is φ = 157116976.

The previous prime is 157116937. The next prime is 157116997. The reversal of 157116977 is 779611751.

157116977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119159056 + 37957921 = 10916^2 + 6161^2 .

It is a cyclic number.

It is not a de Polignac number, because 157116977 - 2²² = 152922673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157116937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78558488 + 78558489.

It is an arithmetic number, because the mean of its divisors is an integer number (78558489).

Almost surely, 2^157116977 is an apocalyptic number.

It is an amenable number.

157116977 is a deficient number, since it is larger than the sum of its proper divisors (1).

157116977 is an equidigital number, since it uses as much as digits as its factorization.

157116977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92610, while the sum is 44.

The square root of 157116977 is about 12534.6311074559. The cubic root of 157116977 is about 539.6030198463.

The spelling of 157116977 in words is "one hundred fifty-seven million, one hundred sixteen thousand, nine hundred seventy-seven".