8081125 has 16 divisors (see below), whose sum is σ = 10863216. Its totient is φ = 5966400.

The previous prime is 8081123. The next prime is 8081153. The reversal of 8081125 is 5211808.

It can be written as a sum of positive squares in 8 ways, for example, as 3556996 + 4524129 = 1886^2 + 2127^2 .

It is not a de Polignac number, because 8081125 - 2¹ = 8081123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 8081125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081123) 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, 862 + ... + 4111.

It is an arithmetic number, because the mean of its divisors is an integer number (678951).

Almost surely, 2^8081125 is an apocalyptic number.

It is an amenable number.

8081125 is a deficient number, since it is larger than the sum of its proper divisors (2782091).

8081125 is a wasteful number, since it uses less digits than its factorization.

8081125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001 (or 4991 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 8081125 is about 2842.7319606322. The cubic root of 8081125 is about 200.6737692925.

The spelling of 8081125 in words is "eight million, eighty-one thousand, one hundred twenty-five".