8540001 has 12 divisors (see below), whose sum is σ = 13061412. Its totient is φ = 5358336.

The previous prime is 8539997. The next prime is 8540003. The reversal of 8540001 is 1000458.

It can be written as a sum of positive squares in 2 ways, for example, as 7834401 + 705600 = 2799^2 + 840^2 .

It is not a de Polignac number, because 8540001 - 2² = 8539997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8540003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27756 + ... + 28061.

It is an arithmetic number, because the mean of its divisors is an integer number (1088451).

Almost surely, 2^8540001 is an apocalyptic number.

It is an amenable number.

8540001 is a deficient number, since it is larger than the sum of its proper divisors (4521411).

8540001 is a wasteful number, since it uses less digits than its factorization.

8540001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55840 (or 55837 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 8540001 is about 2922.3280103370. The cubic root of 8540001 is about 204.4023920304.

Adding to 8540001 its reverse (1000458), we get a palindrome (9540459).

The spelling of 8540001 in words is "eight million, five hundred forty thousand, one".