122696865 has 24 divisors (see below), whose sum is σ = 212952168. Its totient is φ = 65352960.

The previous prime is 122696857. The next prime is 122696897. The reversal of 122696865 is 568696221.

It can be written as a sum of positive squares in 4 ways, for example, as 4822416 + 117874449 = 2196^2 + 10857^2 .

It is not a de Polignac number, because 122696865 - 2³ = 122696857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 122696865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49045 + ... + 51485.

It is an arithmetic number, because the mean of its divisors is an integer number (8873007).

Almost surely, 2^122696865 is an apocalyptic number.

122696865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122696865 is a deficient number, since it is larger than the sum of its proper divisors (90255303).

122696865 is a wasteful number, since it uses less digits than its factorization.

122696865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569 (or 3566 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 122696865 is about 11076.8616945415. The cubic root of 122696865 is about 496.9100976750.

The spelling of 122696865 in words is "one hundred twenty-two million, six hundred ninety-six thousand, eight hundred sixty-five".