123245880 has 64 divisors (see below), whose sum is σ = 372695040. Its totient is φ = 32602752.

The previous prime is 123245839. The next prime is 123245921. The reversal of 123245880 is 88542321.

It is an interprime number because it is at equal distance from previous prime (123245839) and next prime (123245921).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 11197 + ... + 19283.

It is an arithmetic number, because the mean of its divisors is an integer number (5823360).

Almost surely, 2^123245880 is an apocalyptic number.

123245880 is a gapful number since it is divisible by the number (10) 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 123245880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186347520).

123245880 is an abundant number, since it is smaller than the sum of its proper divisors (249449160).

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

123245880 is a wasteful number, since it uses less digits than its factorization.

123245880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228 (or 8224 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 123245880 is about 11101.6160985687. The cubic root of 123245880 is about 497.6501470158.

The spelling of 123245880 in words is "one hundred twenty-three million, two hundred forty-five thousand, eight hundred eighty".