8540159 has 4 divisors (see below), whose sum is σ = 8815680. Its totient is φ = 8264640.

The previous prime is 8540143. The next prime is 8540167. The reversal of 8540159 is 9510458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9510458 = 2 ⋅4755229.

It is a cyclic number.

It is not a de Polignac number, because 8540159 - 2⁴ = 8540143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137714 + ... + 137775.

It is an arithmetic number, because the mean of its divisors is an integer number (2203920).

Almost surely, 2^8540159 is an apocalyptic number.

8540159 is a deficient number, since it is larger than the sum of its proper divisors (275521).

8540159 is a wasteful number, since it uses less digits than its factorization.

8540159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275520.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 8540159 is about 2922.3550434538. The cubic root of 8540159 is about 204.4036525836.

Subtracting 8540159 from its reverse (9510458), we obtain a cube (970299 = 99³).

The spelling of 8540159 in words is "eight million, five hundred forty thousand, one hundred fifty-nine".