2171263 has 4 divisors (see below), whose sum is σ = 2285560. Its totient is φ = 2056968.

The previous prime is 2171261. The next prime is 2171293. The reversal of 2171263 is 3621712.

2171263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2171263 - 2¹ = 2171261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171261) 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 3 ways as a sum of consecutive naturals, for example, 57120 + ... + 57157.

It is an arithmetic number, because the mean of its divisors is an integer number (571390).

2^2171263 is an apocalyptic number.

2171263 is a deficient number, since it is larger than the sum of its proper divisors (114297).

2171263 is a wasteful number, since it uses less digits than its factorization.

2171263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114296.

The product of its digits is 504, while the sum is 22.

The square root of 2171263 is about 1473.5206140397. The cubic root of 2171263 is about 129.4903716201.

Adding to 2171263 its reverse (3621712), we get a palindrome (5792975).

The spelling of 2171263 in words is "two million, one hundred seventy-one thousand, two hundred sixty-three".