111105998 has 8 divisors (see below), whose sum is σ = 168531840. Its totient is φ = 54928720.

The previous prime is 111105971. The next prime is 111106003. The reversal of 111105998 is 899501111.

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

It is a congruent number.

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, 311918 + ... + 312273.

It is an arithmetic number, because the mean of its divisors is an integer number (21066480).

Almost surely, 2^111105998 is an apocalyptic number.

111105998 is a deficient number, since it is larger than the sum of its proper divisors (57425842).

111105998 is an equidigital number, since it uses as much as digits as its factorization.

111105998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624282.

The product of its (nonzero) digits is 3240, while the sum is 35.

The square root of 111105998 is about 10540.6829949487. The cubic root of 111105998 is about 480.7424822737.

The spelling of 111105998 in words is "one hundred eleven million, one hundred five thousand, nine hundred ninety-eight".