125682739 has 32 divisors (see below), whose sum is σ = 164218880. Its totient is φ = 93405312.

The previous prime is 125682721. The next prime is 125682749. The reversal of 125682739 is 937286521.

It is not a de Polignac number, because 125682739 - 2⁵ = 125682707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125682695 and 125682704.

It is not an unprimeable number, because it can be changed into a prime (125682719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271222 + ... + 271684.

It is an arithmetic number, because the mean of its divisors is an integer number (5131840).

Almost surely, 2^125682739 is an apocalyptic number.

125682739 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

125682739 is a deficient number, since it is larger than the sum of its proper divisors (38536141).

125682739 is a wasteful number, since it uses less digits than its factorization.

125682739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659.

The product of its digits is 181440, while the sum is 43.

The square root of 125682739 is about 11210.8313251070. The cubic root of 125682739 is about 500.9086663174.

The spelling of 125682739 in words is "one hundred twenty-five million, six hundred eighty-two thousand, seven hundred thirty-nine".