157109377 has 2 divisors, whose sum is σ = 157109378. Its totient is φ = 157109376.

The previous prime is 157109369. The next prime is 157109387. The reversal of 157109377 is 773901751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143976001 + 13133376 = 11999^2 + 3624^2 .

It is a cyclic number.

It is not a de Polignac number, because 157109377 - 2³ = 157109369 is a prime.

It is not a weakly prime, because it can be changed into another prime (157109317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78554688 + 78554689.

It is an arithmetic number, because the mean of its divisors is an integer number (78554689).

Almost surely, 2^157109377 is an apocalyptic number.

It is an amenable number.

157109377 is a deficient number, since it is larger than the sum of its proper divisors (1).

157109377 is an equidigital number, since it uses as much as digits as its factorization.

157109377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46305, while the sum is 40.

The square root of 157109377 is about 12534.3279436913. The cubic root of 157109377 is about 539.5943192183.

The spelling of 157109377 in words is "one hundred fifty-seven million, one hundred nine thousand, three hundred seventy-seven".