123281922 has 16 divisors (see below), whose sum is σ = 251216640. Its totient is φ = 40318512.

The previous prime is 123281911. The next prime is 123281923. The reversal of 123281922 is 229182321.

It is a self number, because there is not a number n which added to its sum of digits gives 123281922.

It is not an unprimeable number, because it can be changed into a prime (123281923) 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, 193522 + ... + 194157.

It is an arithmetic number, because the mean of its divisors is an integer number (15701040).

Almost surely, 2^123281922 is an apocalyptic number.

123281922 is an abundant number, since it is smaller than the sum of its proper divisors (127934718).

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

123281922 is a wasteful number, since it uses less digits than its factorization.

123281922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387737.

The product of its digits is 3456, while the sum is 30.

The square root of 123281922 is about 11103.2392570817. The cubic root of 123281922 is about 497.6986531902.

The spelling of 123281922 in words is "one hundred twenty-three million, two hundred eighty-one thousand, nine hundred twenty-two".