111974198 has 16 divisors (see below), whose sum is σ = 196638624. Its totient is φ = 46818240.

The previous prime is 111974197. The next prime is 111974237. The reversal of 111974198 is 891479111.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111974197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96965 + ... + 98112.

It is an arithmetic number, because the mean of its divisors is an integer number (12289914).

Almost surely, 2^111974198 is an apocalyptic number.

111974198 is a deficient number, since it is larger than the sum of its proper divisors (84664426).

111974198 is a wasteful number, since it uses less digits than its factorization.

111974198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195127.

The product of its digits is 18144, while the sum is 41.

The square root of 111974198 is about 10581.7861441252. The cubic root of 111974198 is about 481.9914342239.

The spelling of 111974198 in words is "one hundred eleven million, nine hundred seventy-four thousand, one hundred ninety-eight".