8130125 has 16 divisors (see below), whose sum is σ = 10229232. Its totient is φ = 6451200.

The previous prime is 8130113. The next prime is 8130137. The reversal of 8130125 is 5210318.

It is an interprime number because it is at equal distance from previous prime (8130113) and next prime (8130137).

It can be written as a sum of positive squares in 8 ways, for example, as 4674244 + 3455881 = 2162^2 + 1859^2 .

It is not a de Polignac number, because 8130125 - 2¹² = 8126029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8130097 and 8130106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23957 + ... + 24293.

It is an arithmetic number, because the mean of its divisors is an integer number (639327).

Almost surely, 2^8130125 is an apocalyptic number.

It is an amenable number.

8130125 is a deficient number, since it is larger than the sum of its proper divisors (2099107).

8130125 is a wasteful number, since it uses less digits than its factorization.

8130125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 535 counting only the distinct ones).

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

The square root of 8130125 is about 2851.3374054994. The cubic root of 8130125 is about 201.0785482134.

The spelling of 8130125 in words is "eight million, one hundred thirty thousand, one hundred twenty-five".