125411631 has 32 divisors (see below), whose sum is σ = 178329600. Its totient is φ = 78274560.

The previous prime is 125411603. The next prime is 125411641. The reversal of 125411631 is 136114521.

It is a happy number.

It is not a de Polignac number, because 125411631 - 2⁹ = 125411119 is a prime.

It is a super-2 number, since 2×125411631² = 31456154380160322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125411641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487855 + ... + 488111.

It is an arithmetic number, because the mean of its divisors is an integer number (5572800).

Almost surely, 2^125411631 is an apocalyptic number.

125411631 is a deficient number, since it is larger than the sum of its proper divisors (52917969).

125411631 is a wasteful number, since it uses less digits than its factorization.

125411631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439.

The product of its digits is 720, while the sum is 24.

The square root of 125411631 is about 11198.7334551725. The cubic root of 125411631 is about 500.5482399795.

The spelling of 125411631 in words is "one hundred twenty-five million, four hundred eleven thousand, six hundred thirty-one".