123415379 has 2 divisors, whose sum is σ = 123415380. Its totient is φ = 123415378.

The previous prime is 123415343. The next prime is 123415381. The reversal of 123415379 is 973514321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123415379 - 2¹² = 123411283 is a prime.

Together with 123415381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123415399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61707689 + 61707690.

It is an arithmetic number, because the mean of its divisors is an integer number (61707690).

Almost surely, 2^123415379 is an apocalyptic number.

123415379 is a deficient number, since it is larger than the sum of its proper divisors (1).

123415379 is an equidigital number, since it uses as much as digits as its factorization.

123415379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 123415379 is about 11109.2474542608. The cubic root of 123415379 is about 497.8781805009.

The spelling of 123415379 in words is "one hundred twenty-three million, four hundred fifteen thousand, three hundred seventy-nine".