122564454 has 8 divisors (see below), whose sum is σ = 245128920. Its totient is φ = 40854816.

The previous prime is 122564419. The next prime is 122564489. The reversal of 122564454 is 454465221.

It is an interprime number because it is at equal distance from previous prime (122564419) and next prime (122564489).

It is a sphenic number, since it is the product of 3 distinct primes.

122564454 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10213699 + ... + 10213710.

It is an arithmetic number, because the mean of its divisors is an integer number (30641115).

Almost surely, 2^122564454 is an apocalyptic number.

122564454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122564454 is a wasteful number, since it uses less digits than its factorization.

122564454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20427414.

The product of its digits is 38400, while the sum is 33.

The square root of 122564454 is about 11070.8831626027. The cubic root of 122564454 is about 496.7312828763.

The spelling of 122564454 in words is "one hundred twenty-two million, five hundred sixty-four thousand, four hundred fifty-four".