18513082 has 16 divisors (see below), whose sum is σ = 32385600. Its totient is φ = 7933884.

The previous prime is 18513043. The next prime is 18513113. The reversal of 18513082 is 28031581.

It is a self number, because there is not a number n which added to its sum of digits gives 18513082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12808 + ... + 14179.

It is an arithmetic number, because the mean of its divisors is an integer number (2024100).

Almost surely, 2^18513082 is an apocalyptic number.

18513082 is a deficient number, since it is larger than the sum of its proper divisors (13872518).

18513082 is an equidigital number, since it uses as much as digits as its factorization.

18513082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27010 (or 26996 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 18513082 is about 4302.6831163821. The cubic root of 18513082 is about 264.5409496551.

The spelling of 18513082 in words is "eighteen million, five hundred thirteen thousand, eighty-two".