157038977 has 2 divisors, whose sum is σ = 157038978. Its totient is φ = 157038976.

The previous prime is 157038923. The next prime is 157038983. The reversal of 157038977 is 779830751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145540096 + 11498881 = 12064^2 + 3391^2 .

It is a cyclic number.

It is not a de Polignac number, because 157038977 - 2¹⁶ = 156973441 is a prime.

It is a super-2 number, since 2×157038977² = 49322480594413058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157038907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78519488 + 78519489.

It is an arithmetic number, because the mean of its divisors is an integer number (78519489).

Almost surely, 2^157038977 is an apocalyptic number.

It is an amenable number.

157038977 is a deficient number, since it is larger than the sum of its proper divisors (1).

157038977 is an equidigital number, since it uses as much as digits as its factorization.

157038977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 157038977 is about 12531.5193412451. The cubic root of 157038977 is about 539.5137105871.

The spelling of 157038977 in words is "one hundred fifty-seven million, thirty-eight thousand, nine hundred seventy-seven".