113981218 has 32 divisors (see below), whose sum is σ = 189604800. Its totient is φ = 51057216.

The previous prime is 113981213. The next prime is 113981221. The reversal of 113981218 is 812189311.

It is a happy number.

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, 300553 + ... + 300931.

It is an arithmetic number, because the mean of its divisors is an integer number (5925150).

Almost surely, 2^113981218 is an apocalyptic number.

113981218 is a deficient number, since it is larger than the sum of its proper divisors (75623582).

113981218 is a wasteful number, since it uses less digits than its factorization.

113981218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706.

The product of its digits is 3456, while the sum is 34.

The square root of 113981218 is about 10676.1986680653. The cubic root of 113981218 is about 484.8541283776.

The spelling of 113981218 in words is "one hundred thirteen million, nine hundred eighty-one thousand, two hundred eighteen".