157124857 has 2 divisors, whose sum is σ = 157124858. Its totient is φ = 157124856.

The previous prime is 157124831. The next prime is 157124867. The reversal of 157124857 is 758421751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124188736 + 32936121 = 11144^2 + 5739^2 .

It is a cyclic number.

It is not a de Polignac number, because 157124857 - 2¹¹ = 157122809 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157124867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78562428 + 78562429.

It is an arithmetic number, because the mean of its divisors is an integer number (78562429).

Almost surely, 2^157124857 is an apocalyptic number.

It is an amenable number.

157124857 is a deficient number, since it is larger than the sum of its proper divisors (1).

157124857 is an equidigital number, since it uses as much as digits as its factorization.

157124857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 40.

The square root of 157124857 is about 12534.9454326694. The cubic root of 157124857 is about 539.6120407274.

The spelling of 157124857 in words is "one hundred fifty-seven million, one hundred twenty-four thousand, eight hundred fifty-seven".