8500145 has 8 divisors (see below), whose sum is σ = 10217256. Its totient is φ = 6788736.

The previous prime is 8500139. The next prime is 8500157. The reversal of 8500145 is 5410058.

It can be written as a sum of positive squares in 4 ways, for example, as 246016 + 8254129 = 496^2 + 2873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8500145 - 2⁶ = 8500081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8500145.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3269 + ... + 5261.

It is an arithmetic number, because the mean of its divisors is an integer number (1277157).

Almost surely, 2^8500145 is an apocalyptic number.

It is an amenable number.

8500145 is a deficient number, since it is larger than the sum of its proper divisors (1717111).

8500145 is a wasteful number, since it uses less digits than its factorization.

8500145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 8500145 is about 2915.5008146114. The cubic root of 8500145 is about 204.0839155598.

It can be divided in two parts, 850014 and 5, that multiplied together give a triangular number (4250070 = T₂₉₁₅).

The spelling of 8500145 in words is "eight million, five hundred thousand, one hundred forty-five".