5128899 has 4 divisors (see below), whose sum is σ = 6838536. Its totient is φ = 3419264.

The previous prime is 5128897. The next prime is 5128901. The reversal of 5128899 is 9988215.

It is a happy number.

5128899 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 an interprime number because it is at equal distance from previous prime (5128897) and next prime (5128901).

It is a cyclic number.

It is not a de Polignac number, because 5128899 - 2¹ = 5128897 is a prime.

It is a D-number.

5128899 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5128899.

It is not an unprimeable number, because it can be changed into a prime (5128891) 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, 854814 + ... + 854819.

It is an arithmetic number, because the mean of its divisors is an integer number (1709634).

Almost surely, 2^5128899 is an apocalyptic number.

5128899 is a deficient number, since it is larger than the sum of its proper divisors (1709637).

5128899 is a wasteful number, since it uses less digits than its factorization.

5128899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709636.

The product of its digits is 51840, while the sum is 42.

The square root of 5128899 is about 2264.7072658514. The cubic root of 5128899 is about 172.4545732094.

The spelling of 5128899 in words is "five million, one hundred twenty-eight thousand, eight hundred ninety-nine".