123223552 has 80 divisors (see below), whose sum is σ = 261969840. Its totient is φ = 57802752.

The previous prime is 123223549. The next prime is 123223567. The reversal of 123223552 is 255322321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638368 + ... + 638560.

It is an arithmetic number, because the mean of its divisors is an integer number (3274623).

Almost surely, 2^123223552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123223552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130984920).

123223552 is an abundant number, since it is smaller than the sum of its proper divisors (138746288).

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

123223552 is an equidigital number, since it uses as much as digits as its factorization.

123223552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 267 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 123223552 is about 11100.6104336653. The cubic root of 123223552 is about 497.6200927223.

Adding to 123223552 its reverse (255322321), we get a palindrome (378545873).

The spelling of 123223552 in words is "one hundred twenty-three million, two hundred twenty-three thousand, five hundred fifty-two".