110891001 has 16 divisors (see below), whose sum is σ = 162618624. Its totient is φ = 66787584.

The previous prime is 110890993. The next prime is 110891021. The reversal of 110891001 is 100198011.

It is not a de Polignac number, because 110891001 - 2³ = 110890993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (110891021) 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, 28416 + ... + 32081.

It is an arithmetic number, because the mean of its divisors is an integer number (10163664).

Almost surely, 2^110891001 is an apocalyptic number.

It is an amenable number.

110891001 is a deficient number, since it is larger than the sum of its proper divisors (51727623).

110891001 is a wasteful number, since it uses less digits than its factorization.

110891001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60560.

The product of its (nonzero) digits is 72, while the sum is 21.

The square root of 110891001 is about 10530.4796187068. The cubic root of 110891001 is about 480.4321932006.

It can be divided in two parts, 11089 and 1001, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 110891001 in words is "one hundred ten million, eight hundred ninety-one thousand, one".