123338837 has 2 divisors, whose sum is σ = 123338838. Its totient is φ = 123338836.

The previous prime is 123338821. The next prime is 123338843. The reversal of 123338837 is 738833321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94458961 + 28879876 = 9719^2 + 5374^2 .

It is a cyclic number.

It is not a de Polignac number, because 123338837 - 2⁴ = 123338821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123338837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123338867) 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 as a sum of consecutive naturals, namely, 61669418 + 61669419.

It is an arithmetic number, because the mean of its divisors is an integer number (61669419).

Almost surely, 2^123338837 is an apocalyptic number.

It is an amenable number.

123338837 is a deficient number, since it is larger than the sum of its proper divisors (1).

123338837 is an equidigital number, since it uses as much as digits as its factorization.

123338837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 123338837 is about 11105.8019521329. The cubic root of 123338837 is about 497.7752314924.

The spelling of 123338837 in words is "one hundred twenty-three million, three hundred thirty-eight thousand, eight hundred thirty-seven".