111349998 has 16 divisors (see below), whose sum is σ = 247444560. Its totient is φ = 37116648.

The previous prime is 111349961. The next prime is 111350011. The reversal of 111349998 is 899943111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030965 + ... + 1031072.

It is an arithmetic number, because the mean of its divisors is an integer number (15465285).

Almost surely, 2^111349998 is an apocalyptic number.

111349998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

111349998 is an abundant number, since it is smaller than the sum of its proper divisors (136094562).

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

111349998 is a wasteful number, since it uses less digits than its factorization.

111349998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062048 (or 2062042 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 111349998 is about 10552.2508499372. The cubic root of 111349998 is about 481.0941446622.

The spelling of 111349998 in words is "one hundred eleven million, three hundred forty-nine thousand, nine hundred ninety-eight".