18051207 has 16 divisors (see below), whose sum is σ = 25224192. Its totient is φ = 11468160.

The previous prime is 18051191. The next prime is 18051211. The reversal of 18051207 is 70215081.

It is not a de Polignac number, because 18051207 - 2⁴ = 18051191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18051277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4783 + ... + 7679.

It is an arithmetic number, because the mean of its divisors is an integer number (1576512).

Almost surely, 2^18051207 is an apocalyptic number.

18051207 is a deficient number, since it is larger than the sum of its proper divisors (7172985).

18051207 is a wasteful number, since it uses less digits than its factorization.

18051207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 18051207 is about 4248.6712040354. The cubic root of 18051207 is about 262.3224232101.

Adding to 18051207 its reverse (70215081), we get a palindrome (88266288).

The spelling of 18051207 in words is "eighteen million, fifty-one thousand, two hundred seven".