8125013 has 12 divisors (see below), whose sum is σ = 8889408. Its totient is φ = 7422480.

The previous prime is 8125009. The next prime is 8125021. The reversal of 8125013 is 3105218.

8125013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8125013 - 2² = 8125009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21956 + ... + 22322.

It is an arithmetic number, because the mean of its divisors is an integer number (740784).

Almost surely, 2^8125013 is an apocalyptic number.

It is an amenable number.

8125013 is a deficient number, since it is larger than the sum of its proper divisors (764395).

8125013 is a wasteful number, since it uses less digits than its factorization.

8125013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 8125013 is about 2850.4408430978. The cubic root of 8125013 is about 201.0363951487.

The spelling of 8125013 in words is "eight million, one hundred twenty-five thousand, thirteen".