2203144809 has 4 divisors (see below), whose sum is σ = 2937526416. Its totient is φ = 1468763204.

The previous prime is 2203144771. The next prime is 2203144817. The reversal of 2203144809 is 9084413022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2203144809 - 2²⁵ = 2169590377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2203144809.

It is not an unprimeable number, because it can be changed into a prime (2203144109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367190799 + ... + 367190804.

It is an arithmetic number, because the mean of its divisors is an integer number (734381604).

Almost surely, 2^2203144809 is an apocalyptic number.

It is an amenable number.

2203144809 is a deficient number, since it is larger than the sum of its proper divisors (734381607).

2203144809 is an equidigital number, since it uses as much as digits as its factorization.

2203144809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734381606.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2203144809 is about 46937.6694031564. The cubic root of 2203144809 is about 1301.2108656926.

The spelling of 2203144809 in words is "two billion, two hundred three million, one hundred forty-four thousand, eight hundred nine".