5123865 has 16 divisors (see below), whose sum is σ = 8481600. Its totient is φ = 2638272.

The previous prime is 5123849. The next prime is 5123869. The reversal of 5123865 is 5683215.

5123865 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5123865 - 2⁴ = 5123849 is a prime.

5123865 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5123869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5455 + ... + 6324.

It is an arithmetic number, because the mean of its divisors is an integer number (530100).

Almost surely, 2^5123865 is an apocalyptic number.

It is an amenable number.

5123865 is a deficient number, since it is larger than the sum of its proper divisors (3357735).

5123865 is a wasteful number, since it uses less digits than its factorization.

5123865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11816.

The product of its digits is 7200, while the sum is 30.

The square root of 5123865 is about 2263.5955910895. The cubic root of 5123865 is about 172.3981335134.

The spelling of 5123865 in words is "five million, one hundred twenty-three thousand, eight hundred sixty-five".