122904413 has 2 divisors, whose sum is σ = 122904414. Its totient is φ = 122904412.

The previous prime is 122904359. The next prime is 122904427. The reversal of 122904413 is 314409221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122722084 + 182329 = 11078^2 + 427^2 .

It is a cyclic number.

It is not a de Polignac number, because 122904413 - 2²⁶ = 55795549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122904473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61452206 + 61452207.

It is an arithmetic number, because the mean of its divisors is an integer number (61452207).

Almost surely, 2^122904413 is an apocalyptic number.

It is an amenable number.

122904413 is a deficient number, since it is larger than the sum of its proper divisors (1).

122904413 is an equidigital number, since it uses as much as digits as its factorization.

122904413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 122904413 is about 11086.2262740754. The cubic root of 122904413 is about 497.1901227600.

The spelling of 122904413 in words is "one hundred twenty-two million, nine hundred four thousand, four hundred thirteen".