122926986 has 144 divisors (see below), whose sum is σ = 340599168. Its totient is φ = 31752000.

The previous prime is 122926961. The next prime is 122927041. The reversal of 122926986 is 689629221.

It is a super-2 number, since 2×122926986² = 30222087774088392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 814011 + ... + 814161.

It is an arithmetic number, because the mean of its divisors is an integer number (2365272).

Almost surely, 2^122926986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122926986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170299584).

122926986 is an abundant number, since it is smaller than the sum of its proper divisors (217672182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122926986 is a wasteful number, since it uses less digits than its factorization.

122926986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 247 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 122926986 is about 11087.2442924290. The cubic root of 122926986 is about 497.2205593824.

The spelling of 122926986 in words is "one hundred twenty-two million, nine hundred twenty-six thousand, nine hundred eighty-six".