18182107 has 4 divisors (see below), whose sum is σ = 19139080. Its totient is φ = 17225136.

The previous prime is 18182093. The next prime is 18182113. The reversal of 18182107 is 70128181.

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 18182107 - 2¹¹ = 18180059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18182137) 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, 478458 + ... + 478495.

It is an arithmetic number, because the mean of its divisors is an integer number (4784770).

Almost surely, 2^18182107 is an apocalyptic number.

18182107 is a deficient number, since it is larger than the sum of its proper divisors (956973).

18182107 is an equidigital number, since it uses as much as digits as its factorization.

18182107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956972.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 18182107 is about 4264.0481939115. The cubic root of 18182107 is about 262.9549817648.

The spelling of 18182107 in words is "eighteen million, one hundred eighty-two thousand, one hundred seven".