18482131 has 4 divisors (see below), whose sum is σ = 18911992. Its totient is φ = 18052272.

The previous prime is 18482119. The next prime is 18482141. The reversal of 18482131 is 13128481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18482131 - 2⁵ = 18482099 is a prime.

It is a super-2 number, since 2×18482131² = 683178332602322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18482131.

It is not an unprimeable number, because it can be changed into a prime (18482141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 214866 + ... + 214951.

It is an arithmetic number, because the mean of its divisors is an integer number (4727998).

Almost surely, 2^18482131 is an apocalyptic number.

18482131 is a deficient number, since it is larger than the sum of its proper divisors (429861).

18482131 is an equidigital number, since it uses as much as digits as its factorization.

18482131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429860.

The product of its digits is 1536, while the sum is 28.

The square root of 18482131 is about 4299.0849026275. The cubic root of 18482131 is about 264.3934436179.

The spelling of 18482131 in words is "eighteen million, four hundred eighty-two thousand, one hundred thirty-one".