16813045 has 8 divisors (see below), whose sum is σ = 20215224. Its totient is φ = 13424064.

The previous prime is 16813039. The next prime is 16813057. The reversal of 16813045 is 54031861.

It can be written as a sum of positive squares in 4 ways, for example, as 117649 + 16695396 = 343^2 + 4086^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16813045 - 2⁹ = 16812533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 234 + ... + 5803.

It is an arithmetic number, because the mean of its divisors is an integer number (2526903).

Almost surely, 2^16813045 is an apocalyptic number.

It is an amenable number.

16813045 is a deficient number, since it is larger than the sum of its proper divisors (3402179).

16813045 is an equidigital number, since it uses as much as digits as its factorization.

16813045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 16813045 is about 4100.3713246485. The cubic root of 16813045 is about 256.1821061455.

The spelling of 16813045 in words is "sixteen million, eight hundred thirteen thousand, forty-five".