18363265 has 8 divisors (see below), whose sum is σ = 22061160. Its totient is φ = 14673792.

The previous prime is 18363263. The next prime is 18363271. The reversal of 18363265 is 56236381.

It can be written as a sum of positive squares in 4 ways, for example, as 190096 + 18173169 = 436^2 + 4263^2 .

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 18363265 - 2¹ = 18363263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18363265.

It is not an unprimeable number, because it can be changed into a prime (18363263) 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, 4701 + ... + 7669.

It is an arithmetic number, because the mean of its divisors is an integer number (2757645).

Almost surely, 2^18363265 is an apocalyptic number.

It is an amenable number.

18363265 is a deficient number, since it is larger than the sum of its proper divisors (3697895).

18363265 is a wasteful number, since it uses less digits than its factorization.

18363265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211.

The product of its digits is 25920, while the sum is 34.

The square root of 18363265 is about 4285.2380330619. The cubic root of 18363265 is about 263.8254173643.

The spelling of 18363265 in words is "eighteen million, three hundred sixty-three thousand, two hundred sixty-five".