125012631 has 8 divisors (see below), whose sum is σ = 167042304. Its totient is φ = 83162360.

The previous prime is 125012581. The next prime is 125012633. The reversal of 125012631 is 136210521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125012631 - 2¹⁵ = 124979863 is a prime.

It is a super-2 number, since 2×125012631² = 31256315819084322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125012598 and 125012607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125012633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43215 + ... + 46016.

It is an arithmetic number, because the mean of its divisors is an integer number (20880288).

Almost surely, 2^125012631 is an apocalyptic number.

125012631 is a deficient number, since it is larger than the sum of its proper divisors (42029673).

125012631 is an equidigital number, since it uses as much as digits as its factorization.

125012631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89701.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 125012631 is about 11180.9047487223. The cubic root of 125012631 is about 500.0168407661.

The spelling of 125012631 in words is "one hundred twenty-five million, twelve thousand, six hundred thirty-one".