18314045 has 4 divisors (see below), whose sum is σ = 21976860. Its totient is φ = 14651232.

The previous prime is 18314039. The next prime is 18314059. The reversal of 18314045 is 54041381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54041381 = 5573 ⋅9697.

It can be written as a sum of positive squares in 2 ways, for example, as 7198489 + 11115556 = 2683^2 + 3334^2 .

It is a cyclic number.

It is not a de Polignac number, because 18314045 - 2⁴ = 18314029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831400 + ... + 1831409.

It is an arithmetic number, because the mean of its divisors is an integer number (5494215).

Almost surely, 2^18314045 is an apocalyptic number.

It is an amenable number.

18314045 is a deficient number, since it is larger than the sum of its proper divisors (3662815).

18314045 is an equidigital number, since it uses as much as digits as its factorization.

18314045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662814.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 18314045 is about 4279.4912080760. The cubic root of 18314045 is about 263.5894915229.

The spelling of 18314045 in words is "eighteen million, three hundred fourteen thousand, forty-five".