111109898 has 8 divisors (see below), whose sum is σ = 168315300. Its totient is φ = 55004800.

The previous prime is 111109883. The next prime is 111109903. The reversal of 111109898 is 898901111.

It can be written as a sum of positive squares in 2 ways, for example, as 109893289 + 1216609 = 10483^2 + 1103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274823 + ... + 275226.

Almost surely, 2^111109898 is an apocalyptic number.

111109898 is a deficient number, since it is larger than the sum of its proper divisors (57205402).

111109898 is a wasteful number, since it uses less digits than its factorization.

111109898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550152.

The product of its (nonzero) digits is 5184, while the sum is 38.

The square root of 111109898 is about 10540.8679908250. The cubic root of 111109898 is about 480.7481071538.

The spelling of 111109898 in words is "one hundred eleven million, one hundred nine thousand, eight hundred ninety-eight".