18265146 has 16 divisors (see below), whose sum is σ = 36971424. Its totient is φ = 6014864.

The previous prime is 18265141. The next prime is 18265183. The reversal of 18265146 is 64156281.

It is not an unprimeable number, because it can be changed into a prime (18265141) 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, 17841 + ... + 18836.

It is an arithmetic number, because the mean of its divisors is an integer number (2310714).

Almost surely, 2^18265146 is an apocalyptic number.

18265146 is an abundant number, since it is smaller than the sum of its proper divisors (18706278).

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

18265146 is a wasteful number, since it uses less digits than its factorization.

18265146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36765.

The product of its digits is 11520, while the sum is 33.

The square root of 18265146 is about 4273.7742102268. The cubic root of 18265146 is about 263.3546853736.

The spelling of 18265146 in words is "eighteen million, two hundred sixty-five thousand, one hundred forty-six".