18036154 has 4 divisors (see below), whose sum is σ = 27054234. Its totient is φ = 9018076.

The previous prime is 18036119. The next prime is 18036157. The reversal of 18036154 is 45163081.

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

It can be written as a sum of positive squares in only one way, i.e., 18020025 + 16129 = 4245^2 + 127^2 .

It is a super-2 number, since 2×18036154² = 650605702223432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18036157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4509037 + ... + 4509040.

Almost surely, 2^18036154 is an apocalyptic number.

18036154 is a deficient number, since it is larger than the sum of its proper divisors (9018080).

18036154 is an equidigital number, since it uses as much as digits as its factorization.

18036154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9018079.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 18036154 is about 4246.8993395182. The cubic root of 18036154 is about 262.2494855653.

The spelling of 18036154 in words is "eighteen million, thirty-six thousand, one hundred fifty-four".