8169125 has 8 divisors (see below), whose sum is σ = 10195224. Its totient is φ = 6535200.

The previous prime is 8169121. The next prime is 8169131. The reversal of 8169125 is 5219618.

It can be written as a sum of positive squares in 4 ways, for example, as 961 + 8168164 = 31^2 + 2858^2 .

It is not a de Polignac number, because 8169125 - 2² = 8169121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8169091 and 8169100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8169121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32552 + ... + 32801.

It is an arithmetic number, because the mean of its divisors is an integer number (1274403).

Almost surely, 2^8169125 is an apocalyptic number.

It is an amenable number.

8169125 is a deficient number, since it is larger than the sum of its proper divisors (2026099).

8169125 is an equidigital number, since it uses as much as digits as its factorization.

8169125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65368 (or 65358 counting only the distinct ones).

The product of its digits is 4320, while the sum is 32.

The square root of 8169125 is about 2858.1681196179. The cubic root of 8169125 is about 201.3995583373.

The spelling of 8169125 in words is "eight million, one hundred sixty-nine thousand, one hundred twenty-five".