125412879 has 4 divisors (see below), whose sum is σ = 167217176. Its totient is φ = 83608584.

The previous prime is 125412871. The next prime is 125412971. The reversal of 125412879 is 978214521.

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

It is not a de Polignac number, because 125412879 - 2³ = 125412871 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 (125412871) 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, 20902144 + ... + 20902149.

It is an arithmetic number, because the mean of its divisors is an integer number (41804294).

Almost surely, 2^125412879 is an apocalyptic number.

125412879 is a deficient number, since it is larger than the sum of its proper divisors (41804297).

125412879 is an equidigital number, since it uses as much as digits as its factorization.

125412879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41804296.

The product of its digits is 40320, while the sum is 39.

The square root of 125412879 is about 11198.7891756207. The cubic root of 125412879 is about 500.5499003309.

The spelling of 125412879 in words is "one hundred twenty-five million, four hundred twelve thousand, eight hundred seventy-nine".