125836406239 has 8 divisors (see below), whose sum is σ = 127720461440. Its totient is φ = 123952524696.

The previous prime is 125836406233. The next prime is 125836406243. The reversal of 125836406239 is 932604638521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125836406239 - 2⁵ = 125836406207 is a prime.

It is a super-2 number, since 2×125836406239² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125836406192 and 125836406201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125836406233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2754022 + ... + 2799340.

It is an arithmetic number, because the mean of its divisors is an integer number (15965057680).

Almost surely, 2^125836406239 is an apocalyptic number.

125836406239 is a deficient number, since it is larger than the sum of its proper divisors (1884055201).

125836406239 is an equidigital number, since it uses as much as digits as its factorization.

125836406239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86829.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 125836406239 in words is "one hundred twenty-five billion, eight hundred thirty-six million, four hundred six thousand, two hundred thirty-nine".