125713839 has 4 divisors (see below), whose sum is σ = 167618456. Its totient is φ = 83809224.

The previous prime is 125713829. The next prime is 125713849. The reversal of 125713839 is 938317521.

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

It is an interprime number because it is at equal distance from previous prime (125713829) and next prime (125713849).

It is not a de Polignac number, because 125713839 - 2⁸ = 125713583 is a prime.

It is a super-2 number, since 2×125713839² = 31607938632235842, 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 = 125713797 and 125713806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125713829) 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, 20952304 + ... + 20952309.

It is an arithmetic number, because the mean of its divisors is an integer number (41904614).

Almost surely, 2^125713839 is an apocalyptic number.

125713839 is a deficient number, since it is larger than the sum of its proper divisors (41904617).

125713839 is an equidigital number, since it uses as much as digits as its factorization.

125713839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41904616.

The product of its digits is 45360, while the sum is 39.

The square root of 125713839 is about 11212.2182907755. The cubic root of 125713839 is about 500.9499792690.

The spelling of 125713839 in words is "one hundred twenty-five million, seven hundred thirteen thousand, eight hundred thirty-nine".