5128313 has 4 divisors (see below), whose sum is σ = 5143440. Its totient is φ = 5113188.

The previous prime is 5128307. The next prime is 5128327. The reversal of 5128313 is 3138215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3138215 = 5 ⋅627643.

It is a cyclic number.

It is not a de Polignac number, because 5128313 - 2⁴ = 5128297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5128303) 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, 7043 + ... + 7736.

It is an arithmetic number, because the mean of its divisors is an integer number (1285860).

Almost surely, 2^5128313 is an apocalyptic number.

It is an amenable number.

5128313 is a deficient number, since it is larger than the sum of its proper divisors (15127).

5128313 is a wasteful number, since it uses less digits than its factorization.

5128313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15126.

The product of its digits is 720, while the sum is 23.

The square root of 5128313 is about 2264.5778856114. The cubic root of 5128313 is about 172.4480050532.

The spelling of 5128313 in words is "five million, one hundred twenty-eight thousand, three hundred thirteen".