5199919 has 4 divisors (see below), whose sum is σ = 5209200. Its totient is φ = 5190640.

The previous prime is 5199917. The next prime is 5199959. The reversal of 5199919 is 9199915.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9199915 = 5 ⋅1839983.

It is a cyclic number.

It is not a de Polignac number, because 5199919 - 2¹ = 5199917 is a prime.

It is a super-2 number, since 2×5199919² = 54078315213122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5199911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3742 + ... + 4939.

It is an arithmetic number, because the mean of its divisors is an integer number (1302300).

Almost surely, 2^5199919 is an apocalyptic number.

5199919 is a deficient number, since it is larger than the sum of its proper divisors (9281).

5199919 is an equidigital number, since it uses as much as digits as its factorization.

5199919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9280.

The product of its digits is 32805, while the sum is 43.

The square root of 5199919 is about 2280.3330897042. Note that the first 3 decimals coincide. The cubic root of 5199919 is about 173.2469215075.

The spelling of 5199919 in words is "five million, one hundred ninety-nine thousand, nine hundred nineteen".