125407231 has 4 divisors (see below), whose sum is σ = 125432152. Its totient is φ = 125382312.

The previous prime is 125407199. The next prime is 125407253. The reversal of 125407231 is 132704521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125407231 - 2⁵ = 125407199 is a prime.

It is a super-2 number, since 2×125407231² = 31453947174174722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125407196 and 125407205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125407291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965 + ... + 15958.

It is an arithmetic number, because the mean of its divisors is an integer number (31358038).

Almost surely, 2^125407231 is an apocalyptic number.

125407231 is a deficient number, since it is larger than the sum of its proper divisors (24921).

125407231 is an equidigital number, since it uses as much as digits as its factorization.

125407231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24920.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 125407231 is about 11198.5370026624. The cubic root of 125407231 is about 500.5423860886.

The spelling of 125407231 in words is "one hundred twenty-five million, four hundred seven thousand, two hundred thirty-one".