2143264 has 12 divisors (see below), whose sum is σ = 4219614. Its totient is φ = 1071616.

The previous prime is 2143261. The next prime is 2143279. The reversal of 2143264 is 4623412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 11664 = 1460^2 + 108^2 .

It is a d-powerful number, because it can be written as 2¹⁷ + 1 + 4⁹ + 3¹¹ + 2¹⁹ + 6² + 4¹⁰ .

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33457 + ... + 33520.

2^2143264 is an apocalyptic number.

It is an amenable number.

2143264 is a deficient number, since it is larger than the sum of its proper divisors (2076350).

2143264 is an equidigital number, since it uses as much as digits as its factorization.

2143264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66987 (or 66979 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 2143264 is about 1463.9890709975. The cubic root of 2143264 is about 128.9313578286.

Adding to 2143264 its reverse (4623412), we get a palindrome (6766676).

The spelling of 2143264 in words is "two million, one hundred forty-three thousand, two hundred sixty-four".