122873772 has 72 divisors (see below), whose sum is σ = 336979440. Its totient is φ = 34742400.

The previous prime is 122873759. The next prime is 122873791. The reversal of 122873772 is 277378221.

It is a self number, because there is not a number n which added to its sum of digits gives 122873772.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58354 + ... + 60422.

It is an arithmetic number, because the mean of its divisors is an integer number (4680270).

Almost surely, 2^122873772 is an apocalyptic number.

122873772 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 122873772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168489720).

122873772 is an abundant number, since it is smaller than the sum of its proper divisors (214105668).

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

122873772 is a wasteful number, since it uses less digits than its factorization.

122873772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2182 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 122873772 is about 11084.8442478909. The cubic root of 122873772 is about 497.1488015728.

The spelling of 122873772 in words is "one hundred twenty-two million, eight hundred seventy-three thousand, seven hundred seventy-two".