157552613 has 2 divisors, whose sum is σ = 157552614. Its totient is φ = 157552612.

The previous prime is 157552547. The next prime is 157552631. The reversal of 157552613 is 316255751.

157552613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (157552631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79530724 + 78021889 = 8918^2 + 8833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157552613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157552663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78776306 + 78776307.

It is an arithmetic number, because the mean of its divisors is an integer number (78776307).

Almost surely, 2^157552613 is an apocalyptic number.

It is an amenable number.

157552613 is a deficient number, since it is larger than the sum of its proper divisors (1).

157552613 is an equidigital number, since it uses as much as digits as its factorization.

157552613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31500, while the sum is 35.

The square root of 157552613 is about 12551.9963750791. The cubic root of 157552613 is about 540.1012761578.

The spelling of 157552613 in words is "one hundred fifty-seven million, five hundred fifty-two thousand, six hundred thirteen".