125639122 has 8 divisors (see below), whose sum is σ = 215381376. Its totient is φ = 53845332.

The previous prime is 125639119. The next prime is 125639141. The reversal of 125639122 is 221936521.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4487098 + ... + 4487125.

It is an arithmetic number, because the mean of its divisors is an integer number (26922672).

Almost surely, 2^125639122 is an apocalyptic number.

125639122 is a deficient number, since it is larger than the sum of its proper divisors (89742254).

125639122 is an equidigital number, since it uses as much as digits as its factorization.

125639122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8974232.

The product of its digits is 6480, while the sum is 31.

The square root of 125639122 is about 11208.8858500745. The cubic root of 125639122 is about 500.8507144157.

The spelling of 125639122 in words is "one hundred twenty-five million, six hundred thirty-nine thousand, one hundred twenty-two".