125013739 has 4 divisors (see below), whose sum is σ = 125245360. Its totient is φ = 124782120.

The previous prime is 125013703. The next prime is 125013769. The reversal of 125013739 is 937310521.

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

It is a cyclic number.

It is not a de Polignac number, because 125013739 - 2⁷ = 125013611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125013739.

It is not an unprimeable number, because it can be changed into a prime (125013769) 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, 114999 + ... + 116080.

It is an arithmetic number, because the mean of its divisors is an integer number (31311340).

Almost surely, 2^125013739 is an apocalyptic number.

125013739 is a deficient number, since it is larger than the sum of its proper divisors (231621).

125013739 is an equidigital number, since it uses as much as digits as its factorization.

125013739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231620.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 125013739 is about 11180.9542973755. The cubic root of 125013739 is about 500.0183179956.

The spelling of 125013739 in words is "one hundred twenty-five million, thirteen thousand, seven hundred thirty-nine".