8259145 has 4 divisors (see below), whose sum is σ = 9910980. Its totient is φ = 6607312.

The previous prime is 8259143. The next prime is 8259179. The reversal of 8259145 is 5419528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3798601 + 4460544 = 1949^2 + 2112^2 .

It is a cyclic number.

It is not a de Polignac number, because 8259145 - 2¹ = 8259143 is a prime.

It is a super-2 number, since 2×8259145² = 136426952262050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8259145.

It is not an unprimeable number, because it can be changed into a prime (8259143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825910 + ... + 825919.

It is an arithmetic number, because the mean of its divisors is an integer number (2477745).

Almost surely, 2^8259145 is an apocalyptic number.

It is an amenable number.

8259145 is a deficient number, since it is larger than the sum of its proper divisors (1651835).

8259145 is a wasteful number, since it uses less digits than its factorization.

8259145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651834.

The product of its digits is 14400, while the sum is 34.

The square root of 8259145 is about 2873.8728225167. The cubic root of 8259145 is about 202.1366343501.

The spelling of 8259145 in words is "eight million, two hundred fifty-nine thousand, one hundred forty-five".