16450045 has 4 divisors (see below), whose sum is σ = 19740060. Its totient is φ = 13160032.

The previous prime is 16450043. The next prime is 16450069. The reversal of 16450045 is 54005461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54005461 = 311 ⋅173651.

It can be written as a sum of positive squares in 2 ways, for example, as 5447556 + 11002489 = 2334^2 + 3317^2 .

It is a cyclic number.

It is not a de Polignac number, because 16450045 - 2¹ = 16450043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16450043) 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, 1645000 + ... + 1645009.

It is an arithmetic number, because the mean of its divisors is an integer number (4935015).

Almost surely, 2^16450045 is an apocalyptic number.

It is an amenable number.

16450045 is a deficient number, since it is larger than the sum of its proper divisors (3290015).

16450045 is an equidigital number, since it uses as much as digits as its factorization.

16450045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290014.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 16450045 is about 4055.8655056597. The cubic root of 16450045 is about 254.3249864949.

The spelling of 16450045 in words is "sixteen million, four hundred fifty thousand, forty-five".