2443253213 has 4 divisors (see below), whose sum is σ = 2443374780. Its totient is φ = 2443131648.

The previous prime is 2443253173. The next prime is 2443253221. The reversal of 2443253213 is 3123523442.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1375074724 + 1068178489 = 37082^2 + 32683^2 .

It is a cyclic number.

It is not a de Polignac number, because 2443253213 - 2⁸ = 2443252957 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 (2443253233) 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, 22670 + ... + 73487.

It is an arithmetic number, because the mean of its divisors is an integer number (610843695).

Almost surely, 2^2443253213 is an apocalyptic number.

It is an amenable number.

2443253213 is a deficient number, since it is larger than the sum of its proper divisors (121567).

2443253213 is an equidigital number, since it uses as much as digits as its factorization.

2443253213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121566.

The product of its digits is 17280, while the sum is 29.

The square root of 2443253213 is about 49429.2748581243. The cubic root of 2443253213 is about 1346.8611507651.

Adding to 2443253213 its reverse (3123523442), we get a palindrome (5566776655).

The spelling of 2443253213 in words is "two billion, four hundred forty-three million, two hundred fifty-three thousand, two hundred thirteen".