125149679 has 4 divisors (see below), whose sum is σ = 127270920. Its totient is φ = 123028440.

The previous prime is 125149643. The next prime is 125149709. The reversal of 125149679 is 976941521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 976941521 = 3797 ⋅257293.

It is a cyclic number.

It is not a de Polignac number, because 125149679 - 2²⁴ = 108372463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125149639) 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, 1060532 + ... + 1060649.

It is an arithmetic number, because the mean of its divisors is an integer number (31817730).

Almost surely, 2^125149679 is an apocalyptic number.

125149679 is a deficient number, since it is larger than the sum of its proper divisors (2121241).

125149679 is an equidigital number, since it uses as much as digits as its factorization.

125149679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121240.

The product of its digits is 136080, while the sum is 44.

The square root of 125149679 is about 11187.0317332168. The cubic root of 125149679 is about 500.1994923950.

The spelling of 125149679 in words is "one hundred twenty-five million, one hundred forty-nine thousand, six hundred seventy-nine".