157263313 has 2 divisors, whose sum is σ = 157263314. Its totient is φ = 157263312.

The previous prime is 157263299. The next prime is 157263319. The reversal of 157263313 is 313362751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127418944 + 29844369 = 11288^2 + 5463^2 .

It is a cyclic number.

It is not a de Polignac number, because 157263313 - 2²¹ = 155166161 is a prime.

It is not a weakly prime, because it can be changed into another prime (157263319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78631656 + 78631657.

It is an arithmetic number, because the mean of its divisors is an integer number (78631657).

Almost surely, 2^157263313 is an apocalyptic number.

It is an amenable number.

157263313 is a deficient number, since it is larger than the sum of its proper divisors (1).

157263313 is an equidigital number, since it uses as much as digits as its factorization.

157263313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 31.

The square root of 157263313 is about 12540.4670168220. The cubic root of 157263313 is about 539.7704934630.

The spelling of 157263313 in words is "one hundred fifty-seven million, two hundred sixty-three thousand, three hundred thirteen".