18231086 has 8 divisors (see below), whose sum is σ = 27505224. Its totient is φ = 9062680.

The previous prime is 18231079. The next prime is 18231091. The reversal of 18231086 is 68013281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26000 + ... + 26691.

It is an arithmetic number, because the mean of its divisors is an integer number (3438153).

Almost surely, 2^18231086 is an apocalyptic number.

18231086 is a deficient number, since it is larger than the sum of its proper divisors (9274138).

18231086 is a wasteful number, since it uses less digits than its factorization.

18231086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52866.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 18231086 is about 4269.7875825385. The cubic root of 18231086 is about 263.1908863016.

The spelling of 18231086 in words is "eighteen million, two hundred thirty-one thousand, eighty-six".