2243140453 has 4 divisors (see below), whose sum is σ = 2243446380. Its totient is φ = 2242834528.

The previous prime is 2243140447. The next prime is 2243140477. The reversal of 2243140453 is 3540413422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1411279489 + 831860964 = 37567^2 + 28842^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243140453 - 2²⁵ = 2209586021 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 (2243140853) 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 3 ways as a sum of consecutive naturals, for example, 141688 + ... + 156721.

It is an arithmetic number, because the mean of its divisors is an integer number (560861595).

Almost surely, 2^2243140453 is an apocalyptic number.

It is an amenable number.

2243140453 is a deficient number, since it is larger than the sum of its proper divisors (305927).

2243140453 is an equidigital number, since it uses as much as digits as its factorization.

2243140453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305926.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2243140453 is about 47361.8037346552. The cubic root of 2243140453 is about 1309.0377046136.

Adding to 2243140453 its reverse (3540413422), we get a palindrome (5783553875).

The spelling of 2243140453 in words is "two billion, two hundred forty-three million, one hundred forty thousand, four hundred fifty-three".