125878839 has 8 divisors (see below), whose sum is σ = 175135872. Its totient is φ = 80270520.

The previous prime is 125878813. The next prime is 125878861. The reversal of 125878839 is 938878521.

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

It is a de Polignac number, because none of the positive numbers 2^k-125878839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125878791 and 125878800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125878139) 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, 912097 + ... + 912234.

It is an arithmetic number, because the mean of its divisors is an integer number (21891984).

Almost surely, 2^125878839 is an apocalyptic number.

125878839 is a deficient number, since it is larger than the sum of its proper divisors (49257033).

125878839 is a wasteful number, since it uses less digits than its factorization.

125878839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824357.

The product of its digits is 967680, while the sum is 51.

The square root of 125878839 is about 11219.5739223912. The cubic root of 125878839 is about 501.1690498480.

The spelling of 125878839 in words is "one hundred twenty-five million, eight hundred seventy-eight thousand, eight hundred thirty-nine".