18230182 has 4 divisors (see below), whose sum is σ = 27345276. Its totient is φ = 9115090.

The previous prime is 18230161. The next prime is 18230207. The reversal of 18230182 is 28103281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28103281 = 227 ⋅123803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4557544 + ... + 4557547.

It is an arithmetic number, because the mean of its divisors is an integer number (6836319).

Almost surely, 2^18230182 is an apocalyptic number.

18230182 is a deficient number, since it is larger than the sum of its proper divisors (9115094).

18230182 is an equidigital number, since it uses as much as digits as its factorization.

18230182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9115093.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 18230182 is about 4269.6817211591. The cubic root of 18230182 is about 263.1865360672.

The spelling of 18230182 in words is "eighteen million, two hundred thirty thousand, one hundred eighty-two".