122455213 has 2 divisors, whose sum is σ = 122455214. Its totient is φ = 122455212.

The previous prime is 122455181. The next prime is 122455241. The reversal of 122455213 is 312554221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116704809 + 5750404 = 10803^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 122455213 - 2⁵ = 122455181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122455273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61227606 + 61227607.

It is an arithmetic number, because the mean of its divisors is an integer number (61227607).

Almost surely, 2^122455213 is an apocalyptic number.

It is an amenable number.

122455213 is a deficient number, since it is larger than the sum of its proper divisors (1).

122455213 is an equidigital number, since it uses as much as digits as its factorization.

122455213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 122455213 is about 11065.9483552021. The cubic root of 122455213 is about 496.5836610880.

The spelling of 122455213 in words is "one hundred twenty-two million, four hundred fifty-five thousand, two hundred thirteen".