123155322 has 32 divisors (see below), whose sum is σ = 255135744. Its totient is φ = 39606000.

The previous prime is 123155303. The next prime is 123155323. The reversal of 123155322 is 223551321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 123155292 and 123155301.

It is not an unprimeable number, because it can be changed into a prime (123155323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16947 + ... + 23097.

It is an arithmetic number, because the mean of its divisors is an integer number (7972992).

Almost surely, 2^123155322 is an apocalyptic number.

123155322 is an abundant number, since it is smaller than the sum of its proper divisors (131980422).

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

123155322 is a wasteful number, since it uses less digits than its factorization.

123155322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274.

The product of its digits is 1800, while the sum is 24.

The square root of 123155322 is about 11097.5367537125. The cubic root of 123155322 is about 497.5282301767.

The spelling of 123155322 in words is "one hundred twenty-three million, one hundred fifty-five thousand, three hundred twenty-two".