113280816 has 80 divisors (see below), whose sum is σ = 323729280. Its totient is φ = 33845760.

The previous prime is 113280803. The next prime is 113280829. The reversal of 113280816 is 618082311.

It is an interprime number because it is at equal distance from previous prime (113280803) and next prime (113280829).

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, 37075 + ... + 40013.

It is an arithmetic number, because the mean of its divisors is an integer number (4046616).

Almost surely, 2^113280816 is an apocalyptic number.

113280816 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 113280816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161864640).

113280816 is an abundant number, since it is smaller than the sum of its proper divisors (210448464).

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

113280816 is a wasteful number, since it uses less digits than its factorization.

113280816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034 (or 3028 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 113280816 is about 10643.3460903985. The cubic root of 113280816 is about 483.8589621612.

The spelling of 113280816 in words is "one hundred thirteen million, two hundred eighty thousand, eight hundred sixteen".