156900857 has 2 divisors, whose sum is σ = 156900858. Its totient is φ = 156900856.

The previous prime is 156900823. The next prime is 156900869. The reversal of 156900857 is 758009651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132802576 + 24098281 = 11524^2 + 4909^2 .

It is a cyclic number.

It is not a de Polignac number, because 156900857 - 2¹⁰ = 156899833 is a prime.

It is a Chen prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (156900257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78450428 + 78450429.

It is an arithmetic number, because the mean of its divisors is an integer number (78450429).

Almost surely, 2^156900857 is an apocalyptic number.

It is an amenable number.

156900857 is a deficient number, since it is larger than the sum of its proper divisors (1).

156900857 is an equidigital number, since it uses as much as digits as its factorization.

156900857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 156900857 is about 12526.0072249700. The cubic root of 156900857 is about 539.3554919237.

The spelling of 156900857 in words is "one hundred fifty-six million, nine hundred thousand, eight hundred fifty-seven".