123427056 has 80 divisors (see below), whose sum is σ = 332478720. Its totient is φ = 39421440.

The previous prime is 123427049. The next prime is 123427061. The reversal of 123427056 is 650724321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115581 + ... + 116643.

It is an arithmetic number, because the mean of its divisors is an integer number (4155984).

Almost surely, 2^123427056 is an apocalyptic number.

123427056 is a gapful number since it is divisible by the number (16) 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 123427056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166239360).

123427056 is an abundant number, since it is smaller than the sum of its proper divisors (209051664).

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

123427056 is a wasteful number, since it uses less digits than its factorization.

123427056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 123427056 is about 11109.7729949806. The cubic root of 123427056 is about 497.8938823263.

The spelling of 123427056 in words is "one hundred twenty-three million, four hundred twenty-seven thousand, fifty-six".