157122615313 has 2 divisors, whose sum is σ = 157122615314. Its totient is φ = 157122615312.

The previous prime is 157122615281. The next prime is 157122615341. The reversal of 157122615313 is 313516221751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114796959489 + 42325655824 = 338817^2 + 205732^2 .

It is a cyclic number.

It is not a de Polignac number, because 157122615313 - 2⁵ = 157122615281 is a prime.

It is not a weakly prime, because it can be changed into another prime (157122615913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78561307656 + 78561307657.

It is an arithmetic number, because the mean of its divisors is an integer number (78561307657).

Almost surely, 2^157122615313 is an apocalyptic number.

It is an amenable number.

157122615313 is a deficient number, since it is larger than the sum of its proper divisors (1).

157122615313 is an equidigital number, since it uses as much as digits as its factorization.

157122615313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The spelling of 157122615313 in words is "one hundred fifty-seven billion, one hundred twenty-two million, six hundred fifteen thousand, three hundred thirteen".