18082517 has 12 divisors (see below), whose sum is σ = 19187328. Its totient is φ = 17023200.

The previous prime is 18082511. The next prime is 18082541. The reversal of 18082517 is 71528081.

It is a happy number.

It is not a de Polignac number, because 18082517 - 2⁶ = 18082453 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 (18082511) 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, 51938 + ... + 52284.

It is an arithmetic number, because the mean of its divisors is an integer number (1598944).

Almost surely, 2^18082517 is an apocalyptic number.

It is an amenable number.

18082517 is a deficient number, since it is larger than the sum of its proper divisors (1104811).

18082517 is an equidigital number, since it uses as much as digits as its factorization.

18082517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 18082517 is about 4252.3542890968. The cubic root of 18082517 is about 262.4740025652.

The spelling of 18082517 in words is "eighteen million, eighty-two thousand, five hundred seventeen".