123339907 has 4 divisors (see below), whose sum is σ = 126673456. Its totient is φ = 120006360.

The previous prime is 123339901. The next prime is 123339941. The reversal of 123339907 is 709933321.

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 123339907 - 2⁷ = 123339779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 3333511 = 123339907 / (1 + 2 + 3 + 3 + 3 + 9 + 9 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123339901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666719 + ... + 1666792.

It is an arithmetic number, because the mean of its divisors is an integer number (31668364).

Almost surely, 2^123339907 is an apocalyptic number.

123339907 is a deficient number, since it is larger than the sum of its proper divisors (3333549).

123339907 is an equidigital number, since it uses as much as digits as its factorization.

123339907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333548.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 123339907 is about 11105.8501250467. The cubic root of 123339907 is about 497.7766709362.

The spelling of 123339907 in words is "one hundred twenty-three million, three hundred thirty-nine thousand, nine hundred seven".