18122086 has 24 divisors (see below), whose sum is σ = 29319480. Its totient is φ = 8377056.

The previous prime is 18122077. The next prime is 18122087. The reversal of 18122086 is 68022181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18122087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132210 + ... + 132346.

It is an arithmetic number, because the mean of its divisors is an integer number (1221645).

Almost surely, 2^18122086 is an apocalyptic number.

18122086 is a deficient number, since it is larger than the sum of its proper divisors (11197394).

18122086 is a wasteful number, since it uses less digits than its factorization.

18122086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 217 counting only the distinct ones).

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

The square root of 18122086 is about 4257.0043457812. The cubic root of 18122086 is about 262.6653156701.

The spelling of 18122086 in words is "eighteen million, one hundred twenty-two thousand, eighty-six".