18050091 has 8 divisors (see below), whose sum is σ = 24843264. Its totient is φ = 11645160.

The previous prime is 18050089. The next prime is 18050099. The reversal of 18050091 is 19005081.

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

It is not a de Polignac number, because 18050091 - 2¹ = 18050089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18050099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96951 + ... + 97136.

It is an arithmetic number, because the mean of its divisors is an integer number (3105408).

Almost surely, 2^18050091 is an apocalyptic number.

18050091 is a deficient number, since it is larger than the sum of its proper divisors (6793173).

18050091 is a wasteful number, since it uses less digits than its factorization.

18050091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194121.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 18050091 is about 4248.5398668248. The cubic root of 18050091 is about 262.3170171476.

The spelling of 18050091 in words is "eighteen million, fifty thousand, ninety-one".