18141590 has 16 divisors (see below), whose sum is σ = 33143472. Its totient is φ = 7148064.

The previous prime is 18141587. The next prime is 18141623. The reversal of 18141590 is 9514181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12869 + ... + 14208.

It is an arithmetic number, because the mean of its divisors is an integer number (2071467).

Almost surely, 2^18141590 is an apocalyptic number.

18141590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18141590 is a deficient number, since it is larger than the sum of its proper divisors (15001882).

18141590 is a wasteful number, since it uses less digits than its factorization.

18141590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27151.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 18141590 is about 4259.2945425270. The cubic root of 18141590 is about 262.7595135735.

The spelling of 18141590 in words is "eighteen million, one hundred forty-one thousand, five hundred ninety".