113981217 has 16 divisors (see below), whose sum is σ = 176964480. Its totient is φ = 63902592.

The previous prime is 113981213. The next prime is 113981221. The reversal of 113981217 is 712189311.

It is an interprime number because it is at equal distance from previous prime (113981213) and next prime (113981221).

It is not a de Polignac number, because 113981217 - 2² = 113981213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113981213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50092 + ... + 52317.

It is an arithmetic number, because the mean of its divisors is an integer number (11060280).

Almost surely, 2^113981217 is an apocalyptic number.

It is an amenable number.

113981217 is a deficient number, since it is larger than the sum of its proper divisors (62983263).

113981217 is a wasteful number, since it uses less digits than its factorization.

113981217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102472.

The product of its digits is 3024, while the sum is 33.

The square root of 113981217 is about 10676.1986212322. The cubic root of 113981217 is about 484.8541269596.

The spelling of 113981217 in words is "one hundred thirteen million, nine hundred eighty-one thousand, two hundred seventeen".