18059369 has 4 divisors (see below), whose sum is σ = 18365520. Its totient is φ = 17753220.

The previous prime is 18059359. The next prime is 18059383. The reversal of 18059369 is 96395081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96395081 = 173 ⋅557197.

It is a cyclic number.

It is not a de Polignac number, because 18059369 - 2²⁴ = 1282153 is a prime.

It is a super-2 number, since 2×18059369² = 652281617356322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18059339) 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, 152987 + ... + 153104.

It is an arithmetic number, because the mean of its divisors is an integer number (4591380).

Almost surely, 2^18059369 is an apocalyptic number.

It is an amenable number.

18059369 is a deficient number, since it is larger than the sum of its proper divisors (306151).

18059369 is an equidigital number, since it uses as much as digits as its factorization.

18059369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306150.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 18059369 is about 4249.6316310946. The cubic root of 18059369 is about 262.3619543247.

The spelling of 18059369 in words is "eighteen million, fifty-nine thousand, three hundred sixty-nine".