18107045 has 18 divisors (see below), whose sum is σ = 24022194. Its totient is φ = 13092640.

The previous prime is 18107039. The next prime is 18107051. The reversal of 18107045 is 54070181.

It is an interprime number because it is at equal distance from previous prime (18107039) and next prime (18107051).

It can be written as a sum of positive squares in 3 ways, for example, as 9351364 + 8755681 = 3058^2 + 2959^2 .

It is not a de Polignac number, because 18107045 - 2¹² = 18102949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 104579 + ... + 104751.

Almost surely, 2^18107045 is an apocalyptic number.

It is an amenable number.

18107045 is a deficient number, since it is larger than the sum of its proper divisors (5915149).

18107045 is an equidigital number, since it uses as much as digits as its factorization.

18107045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 18107045 is about 4255.2373611821. The cubic root of 18107045 is about 262.5926264198.

The spelling of 18107045 in words is "eighteen million, one hundred seven thousand, forty-five".