8051231 has 4 divisors (see below), whose sum is σ = 8475000. Its totient is φ = 7627464.

The previous prime is 8051221. The next prime is 8051257. The reversal of 8051231 is 1321508.

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 8051231 - 2⁶ = 8051167 is a prime.

It is a super-2 number, since 2×8051231² = 129644641230722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8051221) 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, 211856 + ... + 211893.

It is an arithmetic number, because the mean of its divisors is an integer number (2118750).

Almost surely, 2^8051231 is an apocalyptic number.

8051231 is a deficient number, since it is larger than the sum of its proper divisors (423769).

8051231 is a wasteful number, since it uses less digits than its factorization.

8051231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423768.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 8051231 is about 2837.4691187747. The cubic root of 8051231 is about 200.4260169037.

Adding to 8051231 its reverse (1321508), we get a palindrome (9372739).

The spelling of 8051231 in words is "eight million, fifty-one thousand, two hundred thirty-one".