125013631 has 8 divisors (see below), whose sum is σ = 132875424. Its totient is φ = 117208320.

The previous prime is 125013617. The next prime is 125013643. The reversal of 125013631 is 136310521.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125013631 is a prime.

It is a super-2 number, since 2×125013631² = 31256815871608322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125013601) 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 7 ways as a sum of consecutive naturals, for example, 9510 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (16609428).

Almost surely, 2^125013631 is an apocalyptic number.

125013631 is a deficient number, since it is larger than the sum of its proper divisors (7861793).

125013631 is a wasteful number, since it uses less digits than its factorization.

125013631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28241.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 125013631 is about 11180.9494677331. The cubic root of 125013631 is about 500.0181740061.

The spelling of 125013631 in words is "one hundred twenty-five million, thirteen thousand, six hundred thirty-one".