18065373 has 16 divisors (see below), whose sum is σ = 26614656. Its totient is φ = 10841600.

The previous prime is 18065357. The next prime is 18065381. The reversal of 18065373 is 37356081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18065373 - 2⁴ = 18065357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18065393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6528 + ... + 8873.

It is an arithmetic number, because the mean of its divisors is an integer number (1663416).

Almost surely, 2^18065373 is an apocalyptic number.

It is an amenable number.

18065373 is a deficient number, since it is larger than the sum of its proper divisors (8549283).

18065373 is a wasteful number, since it uses less digits than its factorization.

18065373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15444.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 18065373 is about 4250.3379865606. The cubic root of 18065373 is about 262.3910259687.

The spelling of 18065373 in words is "eighteen million, sixty-five thousand, three hundred seventy-three".