18137086 has 8 divisors (see below), whose sum is σ = 29678904. Its totient is φ = 8244120.

The previous prime is 18137083. The next prime is 18137089. The reversal of 18137086 is 68073181.

It is an interprime number because it is at equal distance from previous prime (18137083) and next prime (18137089).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18137083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412185 + ... + 412228.

It is an arithmetic number, because the mean of its divisors is an integer number (3709863).

Almost surely, 2^18137086 is an apocalyptic number.

18137086 is a deficient number, since it is larger than the sum of its proper divisors (11541818).

18137086 is a wasteful number, since it uses less digits than its factorization.

18137086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824426.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 18137086 is about 4258.7657836514. The cubic root of 18137086 is about 262.7377667328.

The spelling of 18137086 in words is "eighteen million, one hundred thirty-seven thousand, eighty-six".