122566645 has 8 divisors (see below), whose sum is σ = 147269304. Its totient is φ = 97927104.

The previous prime is 122566637. The next prime is 122566649. The reversal of 122566645 is 546665221.

It can be written as a sum of positive squares in 4 ways, for example, as 8803089 + 113763556 = 2967^2 + 10666^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122566645 - 2³ = 122566637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122566649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11394 + ... + 19363.

It is an arithmetic number, because the mean of its divisors is an integer number (18408663).

Almost surely, 2^122566645 is an apocalyptic number.

It is an amenable number.

122566645 is a deficient number, since it is larger than the sum of its proper divisors (24702659).

122566645 is an equidigital number, since it uses as much as digits as its factorization.

122566645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31559.

The product of its digits is 86400, while the sum is 37.

The square root of 122566645 is about 11070.9821154223. The cubic root of 122566645 is about 496.7342427659.

The spelling of 122566645 in words is "one hundred twenty-two million, five hundred sixty-six thousand, six hundred forty-five".