8540201 has 4 divisors (see below), whose sum is σ = 8615892. Its totient is φ = 8464512.

The previous prime is 8540179. The next prime is 8540219. The reversal of 8540201 is 1020458.

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 811801 + 7728400 = 901^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 8540201 - 2¹⁰ = 8539177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8540281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37676 + ... + 37901.

It is an arithmetic number, because the mean of its divisors is an integer number (2153973).

Almost surely, 2^8540201 is an apocalyptic number.

It is an amenable number.

8540201 is a deficient number, since it is larger than the sum of its proper divisors (75691).

8540201 is a wasteful number, since it uses less digits than its factorization.

8540201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75690.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8540201 is about 2922.3622294302. The cubic root of 8540201 is about 204.4039876648.

Adding to 8540201 its reverse (1020458), we get a palindrome (9560659).

The spelling of 8540201 in words is "eight million, five hundred forty thousand, two hundred one".