2231271 has 24 divisors (see below), whose sum is σ = 3729024. Its totient is φ = 1259280.

The previous prime is 2231269. The next prime is 2231279. The reversal of 2231271 is 1721322.

2231271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2231271 - 2¹ = 2231269 is a prime.

It is a super-3 number, since 3×2231271³ = 33325618431160546533, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6576 + ... + 6906.

It is an arithmetic number, because the mean of its divisors is an integer number (155376).

2^2231271 is an apocalyptic number.

2231271 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2231271 is a deficient number, since it is larger than the sum of its proper divisors (1497753).

2231271 is a wasteful number, since it uses less digits than its factorization.

2231271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 2231271 is about 1493.7439539627. The cubic root of 2231271 is about 130.6724720048.

Adding to 2231271 its reverse (1721322), we get a palindrome (3952593).

The spelling of 2231271 in words is "two million, two hundred thirty-one thousand, two hundred seventy-one".