18315141 has 16 divisors (see below), whose sum is σ = 27148800. Its totient is φ = 10906560.

The previous prime is 18315133. The next prime is 18315163. The reversal of 18315141 is 14151381.

It is not a de Polignac number, because 18315141 - 2³ = 18315133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18315131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6366 + ... + 8783.

It is an arithmetic number, because the mean of its divisors is an integer number (1696800).

Almost surely, 2^18315141 is an apocalyptic number.

It is an amenable number.

18315141 is a deficient number, since it is larger than the sum of its proper divisors (8833659).

18315141 is a wasteful number, since it uses less digits than its factorization.

18315141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15196.

The product of its digits is 480, while the sum is 24.

The square root of 18315141 is about 4279.6192587659. The cubic root of 18315141 is about 263.5947495698.

The spelling of 18315141 in words is "eighteen million, three hundred fifteen thousand, one hundred forty-one".