125436231 has 6 divisors (see below), whose sum is σ = 181185680. Its totient is φ = 83624148.

The previous prime is 125436211. The next prime is 125436263. The reversal of 125436231 is 132634521.

It is not a de Polignac number, because 125436231 - 2⁶ = 125436167 is a prime.

It is a super-2 number, since 2×125436231² = 31468496094970722, 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 = 125436195 and 125436204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125436211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6968671 + ... + 6968688.

Almost surely, 2^125436231 is an apocalyptic number.

125436231 is a deficient number, since it is larger than the sum of its proper divisors (55749449).

125436231 is a wasteful number, since it uses less digits than its factorization.

125436231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13937365 (or 13937362 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 125436231 is about 11199.8317398075. The cubic root of 125436231 is about 500.5809660288.

The spelling of 125436231 in words is "one hundred twenty-five million, four hundred thirty-six thousand, two hundred thirty-one".