111638344 has 8 divisors (see below), whose sum is σ = 209321910. Its totient is φ = 55819168.

The previous prime is 111638323. The next prime is 111638353. The reversal of 111638344 is 443836111.

It can be written as a sum of positive squares in only one way, i.e., 89075844 + 22562500 = 9438^2 + 4750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6977389 + ... + 6977404.

Almost surely, 2^111638344 is an apocalyptic number.

It is an amenable number.

111638344 is a deficient number, since it is larger than the sum of its proper divisors (97683566).

111638344 is a wasteful number, since it uses less digits than its factorization.

111638344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13954799 (or 13954795 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 111638344 is about 10565.9047885167. The cubic root of 111638344 is about 481.5090586113.

The spelling of 111638344 in words is "one hundred eleven million, six hundred thirty-eight thousand, three hundred forty-four".