125001652169 has 2 divisors, whose sum is σ = 125001652170. Its totient is φ = 125001652168.

The previous prime is 125001652159. The next prime is 125001652199. The reversal of 125001652169 is 961256100521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119747142025 + 5254510144 = 346045^2 + 72488^2 .

It is a cyclic number.

It is not a de Polignac number, because 125001652169 - 2²⁰ = 125000603593 is a prime.

It is a super-2 number, since 2×125001652169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125001652159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62500826084 + 62500826085.

It is an arithmetic number, because the mean of its divisors is an integer number (62500826085).

Almost surely, 2^125001652169 is an apocalyptic number.

It is an amenable number.

125001652169 is a deficient number, since it is larger than the sum of its proper divisors (1).

125001652169 is an equidigital number, since it uses as much as digits as its factorization.

125001652169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 125001652169 in words is "one hundred twenty-five billion, one million, six hundred fifty-two thousand, one hundred sixty-nine".