5128919 has 4 divisors (see below), whose sum is σ = 5294400. Its totient is φ = 4963440.

The previous prime is 5128909. The next prime is 5128943. The reversal of 5128919 is 9198215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5128919 is a prime.

It is a super-2 number, since 2×5128919² = 52611620217122, 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 (5128909) 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, 82694 + ... + 82755.

It is an arithmetic number, because the mean of its divisors is an integer number (1323600).

Almost surely, 2^5128919 is an apocalyptic number.

5128919 is a deficient number, since it is larger than the sum of its proper divisors (165481).

5128919 is a wasteful number, since it uses less digits than its factorization.

5128919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165480.

The product of its digits is 6480, while the sum is 35.

The square root of 5128919 is about 2264.7116814288. The cubic root of 5128919 is about 172.4547973697.

The spelling of 5128919 in words is "five million, one hundred twenty-eight thousand, nine hundred nineteen".