8540131 has 4 divisors (see below), whose sum is σ = 8566264. Its totient is φ = 8514000.

The previous prime is 8540117. The next prime is 8540141. The reversal of 8540131 is 1310458.

8540131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310458 = 2 ⋅655229.

It is a cyclic number.

It is not a de Polignac number, because 8540131 - 2⁵ = 8540099 is a prime.

It is a super-2 number, since 2×8540131² = 145867674994322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8540111) 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, 12570 + ... + 13231.

It is an arithmetic number, because the mean of its divisors is an integer number (2141566).

Almost surely, 2^8540131 is an apocalyptic number.

8540131 is a deficient number, since it is larger than the sum of its proper divisors (26133).

8540131 is a wasteful number, since it uses less digits than its factorization.

8540131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26132.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 8540131 is about 2922.3502527931. The cubic root of 8540131 is about 204.4034291956.

Adding to 8540131 its reverse (1310458), we get a palindrome (9850589).

The spelling of 8540131 in words is "eight million, five hundred forty thousand, one hundred thirty-one".