18094537 has 4 divisors (see below), whose sum is σ = 18881280. Its totient is φ = 17307796.

The previous prime is 18094523. The next prime is 18094543. The reversal of 18094537 is 73549081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18094537 - 2¹¹ = 18092489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18094496 and 18094505.

It is not an unprimeable number, because it can be changed into a prime (18094337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393337 + ... + 393382.

It is an arithmetic number, because the mean of its divisors is an integer number (4720320).

Almost surely, 2^18094537 is an apocalyptic number.

It is an amenable number.

18094537 is a deficient number, since it is larger than the sum of its proper divisors (786743).

18094537 is an equidigital number, since it uses as much as digits as its factorization.

18094537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786742.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 18094537 is about 4253.7673890329. The cubic root of 18094537 is about 262.5321478390.

The spelling of 18094537 in words is "eighteen million, ninety-four thousand, five hundred thirty-seven".