18094661 has 6 divisors (see below), whose sum is σ = 19593810. Its totient is φ = 16702608.

The previous prime is 18094639. The next prime is 18094691. The reversal of 18094661 is 16649081.

It can be written as a sum of positive squares in 3 ways, for example, as 1366561 + 16728100 = 1169^2 + 4090^2 .

It is not a de Polignac number, because 18094661 - 2²² = 13900357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18094691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53366 + ... + 53703.

It is an arithmetic number, because the mean of its divisors is an integer number (3265635).

Almost surely, 2^18094661 is an apocalyptic number.

It is an amenable number.

18094661 is a deficient number, since it is larger than the sum of its proper divisors (1499149).

18094661 is a wasteful number, since it uses less digits than its factorization.

18094661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107095 (or 107082 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 18094661 is about 4253.7819643230. The cubic root of 18094661 is about 262.5327475396.

The spelling of 18094661 in words is "eighteen million, ninety-four thousand, six hundred sixty-one".