125145188957 has 2 divisors, whose sum is σ = 125145188958. Its totient is φ = 125145188956.

The previous prime is 125145188941. The next prime is 125145188983. The reversal of 125145188957 is 759881541521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119753370916 + 5391818041 = 346054^2 + 73429^2 .

It is a cyclic number.

It is not a de Polignac number, because 125145188957 - 2⁴ = 125145188941 is a prime.

It is a super-2 number, since 2×125145188957² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125145188057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62572594478 + 62572594479.

It is an arithmetic number, because the mean of its divisors is an integer number (62572594479).

Almost surely, 2^125145188957 is an apocalyptic number.

It is an amenable number.

125145188957 is a deficient number, since it is larger than the sum of its proper divisors (1).

125145188957 is an equidigital number, since it uses as much as digits as its factorization.

125145188957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032000, while the sum is 56.

The spelling of 125145188957 in words is "one hundred twenty-five billion, one hundred forty-five million, one hundred eighty-eight thousand, nine hundred fifty-seven".