111818361 has 16 divisors (see below), whose sum is σ = 153433280. Its totient is φ = 72394560.

The previous prime is 111818351. The next prime is 111818381. The reversal of 111818361 is 163818111.

It is not a de Polignac number, because 111818361 - 2⁶ = 111818297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111818351) 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, 20955 + ... + 25743.

It is an arithmetic number, because the mean of its divisors is an integer number (9589580).

Almost surely, 2^111818361 is an apocalyptic number.

It is an amenable number.

111818361 is a deficient number, since it is larger than the sum of its proper divisors (41614919).

111818361 is a wasteful number, since it uses less digits than its factorization.

111818361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016.

The product of its digits is 1152, while the sum is 30.

The square root of 111818361 is about 10574.4201259454. The cubic root of 111818361 is about 481.7677309884.

The spelling of 111818361 in words is "one hundred eleven million, eight hundred eighteen thousand, three hundred sixty-one".