110899591 has 4 divisors (see below), whose sum is σ = 120981384. Its totient is φ = 100817800.

The previous prime is 110899589. The next prime is 110899603. The reversal of 110899591 is 195998011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 195998011 = 11 ⋅17818001.

It is a cyclic number.

It is not a de Polignac number, because 110899591 - 2¹ = 110899589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110899501) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5040880 + ... + 5040901.

It is an arithmetic number, because the mean of its divisors is an integer number (30245346).

Almost surely, 2^110899591 is an apocalyptic number.

110899591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

110899591 is a deficient number, since it is larger than the sum of its proper divisors (10081793).

110899591 is a wasteful number, since it uses less digits than its factorization.

110899591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081792.

The product of its (nonzero) digits is 29160, while the sum is 43.

The square root of 110899591 is about 10530.8874744724. The cubic root of 110899591 is about 480.4445981928. Note that the first 3 decimals are identical.

The spelling of 110899591 in words is "one hundred ten million, eight hundred ninety-nine thousand, five hundred ninety-one".