5169999 has 4 divisors (see below), whose sum is σ = 6893336. Its totient is φ = 3446664.

The previous prime is 5169971. The next prime is 5170001. The reversal of 5169999 is 9999615.

It is a happy number.

5169999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5169999 - 2⁹ = 5169487 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

5169999 is a modest number, since divided by 9999 gives 516 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5169949) 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, 861664 + ... + 861669.

It is an arithmetic number, because the mean of its divisors is an integer number (1723334).

Almost surely, 2^5169999 is an apocalyptic number.

5169999 is a deficient number, since it is larger than the sum of its proper divisors (1723337).

5169999 is a wasteful number, since it uses less digits than its factorization.

5169999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723336.

The product of its digits is 196830, while the sum is 48.

The square root of 5169999 is about 2273.7631802807. The cubic root of 5169999 is about 172.9139982621.

The spelling of 5169999 in words is "five million, one hundred sixty-nine thousand, nine hundred ninety-nine".