18063365 has 4 divisors (see below), whose sum is σ = 21676044. Its totient is φ = 14450688.

The previous prime is 18063361. The next prime is 18063379. The reversal of 18063365 is 56336081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7656289 + 10407076 = 2767^2 + 3226^2 .

It is a cyclic number.

It is not a de Polignac number, because 18063365 - 2² = 18063361 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 (18063361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806332 + ... + 1806341.

It is an arithmetic number, because the mean of its divisors is an integer number (5419011).

Almost surely, 2^18063365 is an apocalyptic number.

It is an amenable number.

18063365 is a deficient number, since it is larger than the sum of its proper divisors (3612679).

18063365 is an equidigital number, since it uses as much as digits as its factorization.

18063365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612678.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 18063365 is about 4250.1017634876. The cubic root of 18063365 is about 262.3813038574.

The spelling of 18063365 in words is "eighteen million, sixty-three thousand, three hundred sixty-five".