7271231 has 8 divisors (see below), whose sum is σ = 7969104. Its totient is φ = 6579520.

The previous prime is 7271221. The next prime is 7271233. The reversal of 7271231 is 1321727.

7271231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7271231 - 2¹⁴ = 7254847 is a prime.

It is a super-2 number, since 2×7271231² = 105741600510722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7271197 and 7271206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7271233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145 + ... + 3981.

It is an arithmetic number, because the mean of its divisors is an integer number (996138).

Almost surely, 2^7271231 is an apocalyptic number.

7271231 is a deficient number, since it is larger than the sum of its proper divisors (697873).

7271231 is a wasteful number, since it uses less digits than its factorization.

7271231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081.

The product of its digits is 588, while the sum is 23.

The square root of 7271231 is about 2696.5220191944. The cubic root of 7271231 is about 193.7325733893.

Adding to 7271231 its reverse (1321727), we get a palindrome (8592958).

The spelling of 7271231 in words is "seven million, two hundred seventy-one thousand, two hundred thirty-one".