125000631 has 32 divisors (see below), whose sum is σ = 212920320. Its totient is φ = 70997472.

The previous prime is 125000599. The next prime is 125000633. The reversal of 125000631 is 136000521.

It is not a de Polignac number, because 125000631 - 2⁵ = 125000599 is a prime.

It is a super-2 number, since 2×125000631² = 31250315500796322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125000633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30786 + ... + 34608.

It is an arithmetic number, because the mean of its divisors is an integer number (6653760).

Almost surely, 2^125000631 is an apocalyptic number.

125000631 is a deficient number, since it is larger than the sum of its proper divisors (87919689).

125000631 is a wasteful number, since it uses less digits than its factorization.

125000631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012 (or 4006 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 125000631 is about 11180.3681066412. The cubic root of 125000631 is about 500.0008413319. Note that the first 3 decimals are identical.

The spelling of 125000631 in words is "one hundred twenty-five million, six hundred thirty-one", and thus it is an aban number.