18113799 has 8 divisors (see below), whose sum is σ = 26347392. Its totient is φ = 10978040.

The previous prime is 18113791. The next prime is 18113803. The reversal of 18113799 is 99731181.

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

It is a cyclic number.

It is not a de Polignac number, because 18113799 - 2³ = 18113791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18113791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274419 + ... + 274484.

It is an arithmetic number, because the mean of its divisors is an integer number (3293424).

Almost surely, 2^18113799 is an apocalyptic number.

18113799 is a deficient number, since it is larger than the sum of its proper divisors (8233593).

18113799 is a wasteful number, since it uses less digits than its factorization.

18113799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548917.

The product of its digits is 13608, while the sum is 39.

The square root of 18113799 is about 4256.0308974442. The cubic root of 18113799 is about 262.6252717269.

The spelling of 18113799 in words is "eighteen million, one hundred thirteen thousand, seven hundred ninety-nine".