122474139 has 16 divisors (see below), whose sum is σ = 164946432. Its totient is φ = 80830368.

The previous prime is 122474129. The next prime is 122474159. The reversal of 122474139 is 931474221.

It is not a de Polignac number, because 122474139 - 2²¹ = 120376987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122474129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190152 + ... + 190794.

It is an arithmetic number, because the mean of its divisors is an integer number (10309152).

Almost surely, 2^122474139 is an apocalyptic number.

122474139 is a deficient number, since it is larger than the sum of its proper divisors (42472293).

122474139 is a wasteful number, since it uses less digits than its factorization.

122474139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186.

The product of its digits is 12096, while the sum is 33.

The square root of 122474139 is about 11066.8034680300. The cubic root of 122474139 is about 496.6092428443.

The spelling of 122474139 in words is "one hundred twenty-two million, four hundred seventy-four thousand, one hundred thirty-nine".