122413139 has 4 divisors (see below), whose sum is σ = 122865120. Its totient is φ = 121961160.

The previous prime is 122413129. The next prime is 122413157. The reversal of 122413139 is 931314221.

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 122413139 - 2⁸ = 122412883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122413129) 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, 225584 + ... + 226125.

It is an arithmetic number, because the mean of its divisors is an integer number (30716280).

Almost surely, 2^122413139 is an apocalyptic number.

122413139 is a deficient number, since it is larger than the sum of its proper divisors (451981).

122413139 is an equidigital number, since it uses as much as digits as its factorization.

122413139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451980.

The product of its digits is 1296, while the sum is 26.

The square root of 122413139 is about 11064.0471347514. The cubic root of 122413139 is about 496.5267813691.

The spelling of 122413139 in words is "one hundred twenty-two million, four hundred thirteen thousand, one hundred thirty-nine".