5128715 has 8 divisors (see below), whose sum is σ = 6196128. Its totient is φ = 4075200.

The previous prime is 5128691. The next prime is 5128723. The reversal of 5128715 is 5178215.

5128715 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5128715 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2642 + ... + 4151.

It is an arithmetic number, because the mean of its divisors is an integer number (774516).

Almost surely, 2^5128715 is an apocalyptic number.

5128715 is a deficient number, since it is larger than the sum of its proper divisors (1067413).

5128715 is a wasteful number, since it uses less digits than its factorization.

5128715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949.

The product of its digits is 2800, while the sum is 29.

The square root of 5128715 is about 2264.6666421352. Note that the first 4 decimals coincide. The cubic root of 5128715 is about 172.4525109071.

The spelling of 5128715 in words is "five million, one hundred twenty-eight thousand, seven hundred fifteen".