18034513 has 8 divisors (see below), whose sum is σ = 20750400. Its totient is φ = 15353520.

The previous prime is 18034493. The next prime is 18034537. The reversal of 18034513 is 31543081.

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

It is not a de Polignac number, because 18034513 - 2⁵ = 18034481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18034573) 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, 7603 + ... + 9688.

It is an arithmetic number, because the mean of its divisors is an integer number (2593800).

Almost surely, 2^18034513 is an apocalyptic number.

It is an amenable number.

18034513 is a deficient number, since it is larger than the sum of its proper divisors (2715887).

18034513 is a wasteful number, since it uses less digits than its factorization.

18034513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17447.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 18034513 is about 4246.7061353477. The cubic root of 18034513 is about 262.2415318286.

Adding to 18034513 its reverse (31543081), we get a palindrome (49577594).

The spelling of 18034513 in words is "eighteen million, thirty-four thousand, five hundred thirteen".