125185465936 has 20 divisors (see below), whose sum is σ = 242566569364. Its totient is φ = 62587641600.

The previous prime is 125185465913. The next prime is 125185465943. The reversal of 125185465936 is 639564581521.

It can be written as a sum of positive squares in 2 ways, for example, as 71706128400 + 53479337536 = 267780^2 + 231256^2 .

It is a super-2 number, since 2×125185465936² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111285 + ... + 512596.

Almost surely, 2^125185465936 is an apocalyptic number.

125185465936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125185465936 is a deficient number, since it is larger than the sum of its proper divisors (117381103428).

125185465936 is a wasteful number, since it uses less digits than its factorization.

125185465936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636430 (or 636424 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 55.

The spelling of 125185465936 in words is "one hundred twenty-five billion, one hundred eighty-five million, four hundred sixty-five thousand, nine hundred thirty-six".