122566845 has 16 divisors (see below), whose sum is σ = 196390080. Its totient is φ = 65274624.

The previous prime is 122566831. The next prime is 122566877. The reversal of 122566845 is 548665221.

It is not a de Polignac number, because 122566845 - 2¹⁷ = 122435773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5557 + ... + 16613.

It is an arithmetic number, because the mean of its divisors is an integer number (12274380).

Almost surely, 2^122566845 is an apocalyptic number.

122566845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122566845 is a deficient number, since it is larger than the sum of its proper divisors (73823235).

122566845 is a wasteful number, since it uses less digits than its factorization.

122566845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11804.

The product of its digits is 115200, while the sum is 39.

The square root of 122566845 is about 11070.9911480409. The cubic root of 122566845 is about 496.7345129503.

The spelling of 122566845 in words is "one hundred twenty-two million, five hundred sixty-six thousand, eight hundred forty-five".