110198981 has 16 divisors (see below), whose sum is σ = 120092544. Its totient is φ = 100713984.

The previous prime is 110198971. The next prime is 110199007. The reversal of 110198981 is 189891011.

It is not a de Polignac number, because 110198981 - 2¹⁸ = 109936837 is a prime.

It is a super-2 number, since 2×110198981² = 24287630826876722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110198951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170000 + ... + 170646.

It is an arithmetic number, because the mean of its divisors is an integer number (7505784).

Almost surely, 2^110198981 is an apocalyptic number.

It is an amenable number.

110198981 is a deficient number, since it is larger than the sum of its proper divisors (9893563).

110198981 is a wasteful number, since it uses less digits than its factorization.

110198981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940.

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

The square root of 110198981 is about 10497.5702426800. The cubic root of 110198981 is about 479.4307212264.

The spelling of 110198981 in words is "one hundred ten million, one hundred ninety-eight thousand, nine hundred eighty-one".