122913612 has 60 divisors (see below), whose sum is σ = 322537600. Its totient is φ = 40816224.

The previous prime is 122913599. The next prime is 122913617. The reversal of 122913612 is 216319221.

122913612 is a `hidden beast` number, since 12 + 29 + 13 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (122913617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 112533 + ... + 113619.

Almost surely, 2^122913612 is an apocalyptic number.

122913612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122913612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161268800).

122913612 is an abundant number, since it is smaller than the sum of its proper divisors (199623988).

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

122913612 is a wasteful number, since it uses less digits than its factorization.

122913612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1441 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 122913612 is about 11086.6411505018. The cubic root of 122913612 is about 497.2025268110.

It can be divided in two parts, 1229 and 13612, that added together give a palindrome (14841).

The spelling of 122913612 in words is "one hundred twenty-two million, nine hundred thirteen thousand, six hundred twelve".