18113049 has 12 divisors (see below), whose sum is σ = 26325936. Its totient is φ = 12000312.

The previous prime is 18113047. The next prime is 18113071. The reversal of 18113049 is 94031181.

It is not a de Polignac number, because 18113049 - 2¹ = 18113047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18113047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4707 + ... + 7640.

It is an arithmetic number, because the mean of its divisors is an integer number (2193828).

Almost surely, 2^18113049 is an apocalyptic number.

It is an amenable number.

18113049 is a deficient number, since it is larger than the sum of its proper divisors (8212887).

18113049 is a wasteful number, since it uses less digits than its factorization.

18113049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12516 (or 12513 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 18113049 is about 4255.9427862696. The cubic root of 18113049 is about 262.6216470193.

The spelling of 18113049 in words is "eighteen million, one hundred thirteen thousand, forty-nine".