157256651 has 2 divisors, whose sum is σ = 157256652. Its totient is φ = 157256650.

The previous prime is 157256621. The next prime is 157256657. The reversal of 157256651 is 156652751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157256651 - 2⁶ = 157256587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157256657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78628325 + 78628326.

It is an arithmetic number, because the mean of its divisors is an integer number (78628326).

Almost surely, 2^157256651 is an apocalyptic number.

157256651 is a deficient number, since it is larger than the sum of its proper divisors (1).

157256651 is an equidigital number, since it uses as much as digits as its factorization.

157256651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 38.

The square root of 157256651 is about 12540.2013939171. The cubic root of 157256651 is about 539.7628714229.

The spelling of 157256651 in words is "one hundred fifty-seven million, two hundred fifty-six thousand, six hundred fifty-one".