122708736 has 144 divisors (see below), whose sum is σ = 372580320. Its totient is φ = 39813120.

The previous prime is 122708723. The next prime is 122708753. The reversal of 122708736 is 637807221.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 122708736.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283176 + ... + 283608.

Almost surely, 2^122708736 is an apocalyptic number.

122708736 is a gapful number since it is divisible by the number (16) 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 122708736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186290160).

122708736 is an abundant number, since it is smaller than the sum of its proper divisors (249871584).

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

122708736 is an equidigital number, since it uses as much as digits as its factorization.

122708736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 122708736 is about 11077.3975283006. The cubic root of 122708736 is about 496.9261226146.

The spelling of 122708736 in words is "one hundred twenty-two million, seven hundred eight thousand, seven hundred thirty-six".