124255121 has 4 divisors (see below), whose sum is σ = 126361200. Its totient is φ = 122149044.

The previous prime is 124255097. The next prime is 124255151. The reversal of 124255121 is 121552421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124255121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124255151) 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, 1052951 + ... + 1053068.

It is an arithmetic number, because the mean of its divisors is an integer number (31590300).

Almost surely, 2^124255121 is an apocalyptic number.

It is an amenable number.

124255121 is a deficient number, since it is larger than the sum of its proper divisors (2106079).

124255121 is an equidigital number, since it uses as much as digits as its factorization.

124255121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106078.

The product of its digits is 800, while the sum is 23.

The square root of 124255121 is about 11146.9781106809. The cubic root of 124255121 is about 499.0048486617.

The spelling of 124255121 in words is "one hundred twenty-four million, two hundred fifty-five thousand, one hundred twenty-one".