16190045 has 12 divisors (see below), whose sum is σ = 20312796. Its totient is φ = 12386880.

The previous prime is 16190011. The next prime is 16190077. The reversal of 16190045 is 54009161.

It can be written as a sum of positive squares in 2 ways, for example, as 3644281 + 12545764 = 1909^2 + 3542^2 .

It is not a de Polignac number, because 16190045 - 2⁶ = 16189981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16189996 and 16190023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416 + ... + 5705.

It is an arithmetic number, because the mean of its divisors is an integer number (1692733).

Almost surely, 2^16190045 is an apocalyptic number.

It is an amenable number.

16190045 is a deficient number, since it is larger than the sum of its proper divisors (4122751).

16190045 is an equidigital number, since it uses as much as digits as its factorization.

16190045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172 (or 6149 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 16190045 is about 4023.6854996384. The cubic root of 16190045 is about 252.9779595125.

The spelling of 16190045 in words is "sixteen million, one hundred ninety thousand, forty-five".