8542231 has 4 divisors (see below), whose sum is σ = 8553600. Its totient is φ = 8530864.

The previous prime is 8542201. The next prime is 8542243. The reversal of 8542231 is 1322458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8542231 - 2²¹ = 6445079 is a prime.

It is a super-2 number, since 2×8542231² = 145939420914722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8² + 5⁷ + 4⁷ + 2²² + 2²² + 3¹⁰ + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8542196 and 8542205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8542201) 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, 4471 + ... + 6088.

It is an arithmetic number, because the mean of its divisors is an integer number (2138400).

Almost surely, 2^8542231 is an apocalyptic number.

8542231 is a deficient number, since it is larger than the sum of its proper divisors (11369).

8542231 is a wasteful number, since it uses less digits than its factorization.

8542231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11368.

The product of its digits is 1920, while the sum is 25.

The square root of 8542231 is about 2922.7095305555. The cubic root of 8542231 is about 204.4201819449.

Adding to 8542231 its reverse (1322458), we get a palindrome (9864689).

The spelling of 8542231 in words is "eight million, five hundred forty-two thousand, two hundred thirty-one".