122288565 has 48 divisors (see below), whose sum is σ = 241019712. Its totient is φ = 52609536.

The previous prime is 122288561. The next prime is 122288597. The reversal of 122288565 is 565882221.

It is not a de Polignac number, because 122288565 - 2² = 122288561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122288561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7602 + ... + 17388.

It is an arithmetic number, because the mean of its divisors is an integer number (5021244).

Almost surely, 2^122288565 is an apocalyptic number.

122288565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122288565 is a deficient number, since it is larger than the sum of its proper divisors (118731147).

122288565 is a wasteful number, since it uses less digits than its factorization.

122288565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826 (or 9819 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 122288565 is about 11058.4160258149. The cubic root of 122288565 is about 496.3582936787.

The spelling of 122288565 in words is "one hundred twenty-two million, two hundred eighty-eight thousand, five hundred sixty-five".