5120865 has 12 divisors (see below), whose sum is σ = 8876244. Its totient is φ = 2731104.

The previous prime is 5120839. The next prime is 5120879. The reversal of 5120865 is 5680215.

It can be written as a sum of positive squares in 2 ways, for example, as 1468944 + 3651921 = 1212^2 + 1911^2 .

It is not a de Polignac number, because 5120865 - 2⁵ = 5120833 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56854 + ... + 56943.

It is an arithmetic number, because the mean of its divisors is an integer number (739687).

Almost surely, 2^5120865 is an apocalyptic number.

It is an amenable number.

5120865 is a deficient number, since it is larger than the sum of its proper divisors (3755379).

5120865 is a wasteful number, since it uses less digits than its factorization.

5120865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113808 (or 113805 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 5120865 is about 2262.9328315264. The cubic root of 5120865 is about 172.3644808331.

The spelling of 5120865 in words is "five million, one hundred twenty thousand, eight hundred sixty-five".