545216199 has 20 divisors (see below), whose sum is σ = 799709880. Its totient is φ = 330407440.

The previous prime is 545216179. The next prime is 545216239. The reversal of 545216199 is 991612545.

It is not a de Polignac number, because 545216199 - 2⁷ = 545216071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545216199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545216159) 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 19 ways as a sum of consecutive naturals, for example, 37717 + ... + 50129.

It is an arithmetic number, because the mean of its divisors is an integer number (39985494).

Almost surely, 2^545216199 is an apocalyptic number.

545216199 is a deficient number, since it is larger than the sum of its proper divisors (254493681).

545216199 is an equidigital number, since it uses as much as digits as its factorization.

545216199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12460 (or 12427 counting only the distinct ones).

The product of its digits is 97200, while the sum is 42.

The square root of 545216199 is about 23349.8650745566. The cubic root of 545216199 is about 816.9389137770.

The spelling of 545216199 in words is "five hundred forty-five million, two hundred sixteen thousand, one hundred ninety-nine".