112218943 has 4 divisors (see below), whose sum is σ = 113479920. Its totient is φ = 110957968.

The previous prime is 112218941. The next prime is 112218961. The reversal of 112218943 is 349812211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112218943 - 2¹ = 112218941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112218941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630355 + ... + 630532.

It is an arithmetic number, because the mean of its divisors is an integer number (28369980).

Almost surely, 2^112218943 is an apocalyptic number.

112218943 is a deficient number, since it is larger than the sum of its proper divisors (1260977).

112218943 is an equidigital number, since it uses as much as digits as its factorization.

112218943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260976.

The product of its digits is 3456, while the sum is 31.

The square root of 112218943 is about 10593.3442783665. The cubic root of 112218943 is about 482.3423458728.

It can be divided in two parts, 11221 and 8943, that added together give a square (20164 = 142²).

The spelling of 112218943 in words is "one hundred twelve million, two hundred eighteen thousand, nine hundred forty-three".