8540231 has 8 divisors (see below), whose sum is σ = 9805824. Its totient is φ = 7286040.

The previous prime is 8540227. The next prime is 8540237. The reversal of 8540231 is 1320458.

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 8540231 - 2² = 8540227 is a prime.

It is a super-2 number, since 2×8540231² = 145871091066722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8540197 and 8540206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175 + ... + 4296.

It is an arithmetic number, because the mean of its divisors is an integer number (1225728).

Almost surely, 2^8540231 is an apocalyptic number.

8540231 is a deficient number, since it is larger than the sum of its proper divisors (1265593).

8540231 is a wasteful number, since it uses less digits than its factorization.

8540231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 8540231 is about 2922.3673622596. The cubic root of 8540231 is about 204.4042270078.

Adding to 8540231 its reverse (1320458), we get a palindrome (9860689).

It can be divided in two parts, 85402 and 31, that multiplied together give a palindrome (2647462).

The spelling of 8540231 in words is "eight million, five hundred forty thousand, two hundred thirty-one".