18036158 has 16 divisors (see below), whose sum is σ = 30975360. Its totient is φ = 7715736.

The previous prime is 18036157. The next prime is 18036169. The reversal of 18036158 is 85163081.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18036157) 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, 11633 + ... + 13091.

It is an arithmetic number, because the mean of its divisors is an integer number (1935960).

Almost surely, 2^18036158 is an apocalyptic number.

18036158 is a deficient number, since it is larger than the sum of its proper divisors (12939202).

18036158 is a wasteful number, since it uses less digits than its factorization.

18036158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 18036158 is about 4246.8998104500. The cubic root of 18036158 is about 262.2495049523.

The spelling of 18036158 in words is "eighteen million, thirty-six thousand, one hundred fifty-eight".