123264939 has 40 divisors (see below), whose sum is σ = 194725520. Its totient is φ = 69346368.

The previous prime is 123264931. The next prime is 123264971. The reversal of 123264939 is 939462321.

It is not a de Polignac number, because 123264939 - 2³ = 123264931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123264897 and 123264906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123264931) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 785049 + ... + 785205.

It is an arithmetic number, because the mean of its divisors is an integer number (4868138).

Almost surely, 2^123264939 is an apocalyptic number.

123264939 is a deficient number, since it is larger than the sum of its proper divisors (71460581).

123264939 is an equidigital number, since it uses as much as digits as its factorization.

123264939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 276 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 123264939 is about 11102.4744539224. The cubic root of 123264939 is about 497.6757982459.

The spelling of 123264939 in words is "one hundred twenty-three million, two hundred sixty-four thousand, nine hundred thirty-nine".