157613507 has 2 divisors, whose sum is σ = 157613508. Its totient is φ = 157613506.

The previous prime is 157613483. The next prime is 157613509. The reversal of 157613507 is 705316751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157613507 - 2⁸ = 157613251 is a prime.

Together with 157613509, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157613509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78806753 + 78806754.

It is an arithmetic number, because the mean of its divisors is an integer number (78806754).

Almost surely, 2^157613507 is an apocalyptic number.

157613507 is a deficient number, since it is larger than the sum of its proper divisors (1).

157613507 is an equidigital number, since it uses as much as digits as its factorization.

157613507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 157613507 is about 12554.4218106610. The cubic root of 157613507 is about 540.1708501458.

The spelling of 157613507 in words is "one hundred fifty-seven million, six hundred thirteen thousand, five hundred seven".