18013146 has 8 divisors (see below), whose sum is σ = 36026304. Its totient is φ = 6004380.

The previous prime is 18013141. The next prime is 18013153. The reversal of 18013146 is 64131081.

It is a sphenic number, since it is the product of 3 distinct primes.

18013146 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18013141) 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, 1501090 + ... + 1501101.

It is an arithmetic number, because the mean of its divisors is an integer number (4503288).

Almost surely, 2^18013146 is an apocalyptic number.

18013146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18013146 is a wasteful number, since it uses less digits than its factorization.

18013146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002196.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 18013146 is about 4244.1896753091. The cubic root of 18013146 is about 262.1379243886.

The spelling of 18013146 in words is "eighteen million, thirteen thousand, one hundred forty-six".