122644505 has 8 divisors (see below), whose sum is σ = 149370432. Its totient is φ = 96650928.

The previous prime is 122644499. The next prime is 122644507. The reversal of 122644505 is 505446221.

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 122644505 - 2¹⁸ = 122382361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122644507) 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, 182717 + ... + 183386.

It is an arithmetic number, because the mean of its divisors is an integer number (18671304).

Almost surely, 2^122644505 is an apocalyptic number.

It is an amenable number.

122644505 is a deficient number, since it is larger than the sum of its proper divisors (26725927).

122644505 is an equidigital number, since it uses as much as digits as its factorization.

122644505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366175.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 122644505 is about 11074.4979570182. The cubic root of 122644505 is about 496.8394033542.

The spelling of 122644505 in words is "one hundred twenty-two million, six hundred forty-four thousand, five hundred five".