122568379 has 2 divisors, whose sum is σ = 122568380. Its totient is φ = 122568378.

The previous prime is 122568371. The next prime is 122568409. The reversal of 122568379 is 973865221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122568379 - 2³ = 122568371 is a prime.

It is not a weakly prime, because it can be changed into another prime (122568371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61284189 + 61284190.

It is an arithmetic number, because the mean of its divisors is an integer number (61284190).

Almost surely, 2^122568379 is an apocalyptic number.

122568379 is a deficient number, since it is larger than the sum of its proper divisors (1).

122568379 is an equidigital number, since it uses as much as digits as its factorization.

122568379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 122568379 is about 11071.0604279807. The cubic root of 122568379 is about 496.7365852550.

The spelling of 122568379 in words is "one hundred twenty-two million, five hundred sixty-eight thousand, three hundred seventy-nine".