125252431 has 4 divisors (see below), whose sum is σ = 129292864. Its totient is φ = 121212000.

The previous prime is 125252419. The next prime is 125252441. The reversal of 125252431 is 134252521.

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 125252431 - 2⁵ = 125252399 is a prime.

It is a super-2 number, since 2×125252431² = 31376342942819522, 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 = 125252396 and 125252405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125252401) 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, 2020170 + ... + 2020231.

It is an arithmetic number, because the mean of its divisors is an integer number (32323216).

Almost surely, 2^125252431 is an apocalyptic number.

125252431 is a deficient number, since it is larger than the sum of its proper divisors (4040433).

125252431 is an equidigital number, since it uses as much as digits as its factorization.

125252431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040432.

The product of its digits is 2400, while the sum is 25.

The square root of 125252431 is about 11191.6232513429. The cubic root of 125252431 is about 500.3363483555.

The spelling of 125252431 in words is "one hundred twenty-five million, two hundred fifty-two thousand, four hundred thirty-one".