122595561 has 24 divisors (see below), whose sum is σ = 194500800. Its totient is φ = 73792800.

The previous prime is 122595521. The next prime is 122595563. The reversal of 122595561 is 165595221.

122595561 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 95 + 561 = 666.

It is not a de Polignac number, because 122595561 - 2¹⁸ = 122333417 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (122595563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10596 + ... + 18906.

It is an arithmetic number, because the mean of its divisors is an integer number (8104200).

Almost surely, 2^122595561 is an apocalyptic number.

122595561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122595561 is a deficient number, since it is larger than the sum of its proper divisors (71905239).

122595561 is a wasteful number, since it uses less digits than its factorization.

122595561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8477 (or 8474 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 122595561 is about 11072.2879749400. The cubic root of 122595561 is about 496.7733029793.

The spelling of 122595561 in words is "one hundred twenty-two million, five hundred ninety-five thousand, five hundred sixty-one".