123255432 has 192 divisors, whose sum is σ = 377395200. Its totient is φ = 37558080.

The previous prime is 123255427. The next prime is 123255443. The reversal of 123255432 is 234552321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 123255396 and 123255405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1735957 + ... + 1736027.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^123255432 is an apocalyptic number.

123255432 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 123255432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188697600).

123255432 is an abundant number, since it is smaller than the sum of its proper divisors (254139768).

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

123255432 is a wasteful number, since it uses less digits than its factorization.

123255432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 142 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 123255432 is about 11102.0462978678. The cubic root of 123255432 is about 497.6630032438.

The spelling of 123255432 in words is "one hundred twenty-three million, two hundred fifty-five thousand, four hundred thirty-two".