16445199 has 4 divisors (see below), whose sum is σ = 21926936. Its totient is φ = 10963464.

The previous prime is 16445183. The next prime is 16445227. The reversal of 16445199 is 99154461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16445199 - 2⁴ = 16445183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16445119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2740864 + ... + 2740869.

It is an arithmetic number, because the mean of its divisors is an integer number (5481734).

Almost surely, 2^16445199 is an apocalyptic number.

16445199 is a deficient number, since it is larger than the sum of its proper divisors (5481737).

16445199 is an equidigital number, since it uses as much as digits as its factorization.

16445199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5481736.

The product of its digits is 38880, while the sum is 39.

The square root of 16445199 is about 4055.2680552585. The cubic root of 16445199 is about 254.3000102729.

The spelling of 16445199 in words is "sixteen million, four hundred forty-five thousand, one hundred ninety-nine".