631366125 has 64 divisors (see below), whose sum is σ = 1148888832. Its totient is φ = 306028800.

The previous prime is 631366121. The next prime is 631366133. The reversal of 631366125 is 521663136.

It is not a de Polignac number, because 631366125 - 2² = 631366121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631366121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 325659 + ... + 327591.

It is an arithmetic number, because the mean of its divisors is an integer number (17951388).

Almost surely, 2^631366125 is an apocalyptic number.

631366125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

631366125 is a deficient number, since it is larger than the sum of its proper divisors (517522707).

631366125 is a wasteful number, since it uses less digits than its factorization.

631366125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2021 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 631366125 is about 25126.9999204043. Note that the first 4 decimals coincide. The cubic root of 631366125 is about 857.8810847416.

The spelling of 631366125 in words is "six hundred thirty-one million, three hundred sixty-six thousand, one hundred twenty-five".