157255169 has 2 divisors, whose sum is σ = 157255170. Its totient is φ = 157255168.

The previous prime is 157255159. The next prime is 157255177. The reversal of 157255169 is 961552751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132135025 + 25120144 = 11495^2 + 5012^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157255169 is a prime.

It is a super-2 number, since 2×157255169² = 49458376354437122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157255129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78627584 + 78627585.

It is an arithmetic number, because the mean of its divisors is an integer number (78627585).

Almost surely, 2^157255169 is an apocalyptic number.

It is an amenable number.

157255169 is a deficient number, since it is larger than the sum of its proper divisors (1).

157255169 is an equidigital number, since it uses as much as digits as its factorization.

157255169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 41.

The square root of 157255169 is about 12540.1423038178. The cubic root of 157255169 is about 539.7611758273.

The spelling of 157255169 in words is "one hundred fifty-seven million, two hundred fifty-five thousand, one hundred sixty-nine".