157696507 has 2 divisors, whose sum is σ = 157696508. Its totient is φ = 157696506.

The previous prime is 157696501. The next prime is 157696531. The reversal of 157696507 is 705696751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157696507 - 2⁷ = 157696379 is a prime.

It is a super-4 number, since 4×157696507⁴ (a number of 34 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (157696501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78848253 + 78848254.

It is an arithmetic number, because the mean of its divisors is an integer number (78848254).

Almost surely, 2^157696507 is an apocalyptic number.

157696507 is a deficient number, since it is larger than the sum of its proper divisors (1).

157696507 is an equidigital number, since it uses as much as digits as its factorization.

157696507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 157696507 is about 12557.7269838136. The cubic root of 157696507 is about 540.2656523274.

It can be divided in two parts, 157696 and 507, that added together give a triangular number (158203 = T₅₆₂).

The spelling of 157696507 in words is "one hundred fifty-seven million, six hundred ninety-six thousand, five hundred seven".