18032107 has 4 divisors (see below), whose sum is σ = 18207280. Its totient is φ = 17856936.

The previous prime is 18032101. The next prime is 18032117. The reversal of 18032107 is 70123081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18032107 - 2¹¹ = 18030059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18032101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87432 + ... + 87637.

It is an arithmetic number, because the mean of its divisors is an integer number (4551820).

Almost surely, 2^18032107 is an apocalyptic number.

18032107 is a deficient number, since it is larger than the sum of its proper divisors (175173).

18032107 is a wasteful number, since it uses less digits than its factorization.

18032107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175172.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 18032107 is about 4246.4228475271. The cubic root of 18032107 is about 262.2298693534.

Adding to 18032107 its reverse (70123081), we get a palindrome (88155188).

The spelling of 18032107 in words is "eighteen million, thirty-two thousand, one hundred seven".