122656769 has 8 divisors (see below), whose sum is σ = 130967232. Its totient is φ = 114594480.

The previous prime is 122656759. The next prime is 122656771. The reversal of 122656769 is 967656221.

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 122656769 - 2⁴ = 122656753 is a prime.

It is a super-2 number, since 2×122656769² = 30089365963038722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122656759) 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, 61022 + ... + 62999.

It is an arithmetic number, because the mean of its divisors is an integer number (16370904).

Almost surely, 2^122656769 is an apocalyptic number.

It is an amenable number.

122656769 is a deficient number, since it is larger than the sum of its proper divisors (8310463).

122656769 is a wasteful number, since it uses less digits than its factorization.

122656769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124087.

The product of its digits is 272160, while the sum is 44.

The square root of 122656769 is about 11075.0516477351. The cubic root of 122656769 is about 496.8559635073.

The spelling of 122656769 in words is "one hundred twenty-two million, six hundred fifty-six thousand, seven hundred sixty-nine".