123379215 has 16 divisors (see below), whose sum is σ = 197639136. Its totient is φ = 65724800.

The previous prime is 123379211. The next prime is 123379219. The reversal of 123379215 is 512973321.

It is an interprime number because it is at equal distance from previous prime (123379211) and next prime (123379219).

It is not a de Polignac number, because 123379215 - 2² = 123379211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123379211) 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, 9745 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (12352446).

Almost surely, 2^123379215 is an apocalyptic number.

123379215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123379215 is a deficient number, since it is larger than the sum of its proper divisors (74259921).

123379215 is an equidigital number, since it uses as much as digits as its factorization.

123379215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9690.

The product of its digits is 11340, while the sum is 33.

The square root of 123379215 is about 11107.6196820021. The cubic root of 123379215 is about 497.8295452184.

The spelling of 123379215 in words is "one hundred twenty-three million, three hundred seventy-nine thousand, two hundred fifteen".