125425839 has 40 divisors (see below), whose sum is σ = 212965632. Its totient is φ = 65115120.

The previous prime is 125425789. The next prime is 125425843. The reversal of 125425839 is 938524521.

It is not a de Polignac number, because 125425839 - 2²⁰ = 124377263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125425797 and 125425806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125425889) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 78442 + ... + 80024.

Almost surely, 2^125425839 is an apocalyptic number.

125425839 is a deficient number, since it is larger than the sum of its proper divisors (87539793).

125425839 is an equidigital number, since it uses as much as digits as its factorization.

125425839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1604 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 125425839 is about 11199.3677946570. The cubic root of 125425839 is about 500.5671417905.

It can be divided in two parts, 12542 and 5839, that added together give a palindrome (18381).

The spelling of 125425839 in words is "one hundred twenty-five million, four hundred twenty-five thousand, eight hundred thirty-nine".