111423198 has 16 divisors (see below), whose sum is σ = 224819856. Its totient is φ = 36812160.

The previous prime is 111423197. The next prime is 111423203. The reversal of 111423198 is 891324111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111423197) 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, 81493 + ... + 82848.

It is an arithmetic number, because the mean of its divisors is an integer number (14051241).

Almost surely, 2^111423198 is an apocalyptic number.

111423198 is an abundant number, since it is smaller than the sum of its proper divisors (113396658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111423198 is a wasteful number, since it uses less digits than its factorization.

111423198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164459.

The product of its digits is 1728, while the sum is 30.

The square root of 111423198 is about 10555.7187344112. The cubic root of 111423198 is about 481.1995431893.

The spelling of 111423198 in words is "one hundred eleven million, four hundred twenty-three thousand, one hundred ninety-eight".