2243131439 has 4 divisors (see below), whose sum is σ = 2244854256. Its totient is φ = 2241408624.

The previous prime is 2243131417. The next prime is 2243131441. The reversal of 2243131439 is 9341313422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243131439 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 (2243131409) 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, 859454 + ... + 862059.

It is an arithmetic number, because the mean of its divisors is an integer number (561213564).

Almost surely, 2^2243131439 is an apocalyptic number.

2243131439 is a deficient number, since it is larger than the sum of its proper divisors (1722817).

2243131439 is a wasteful number, since it uses less digits than its factorization.

2243131439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722816.

The product of its digits is 15552, while the sum is 32.

The square root of 2243131439 is about 47361.7085734879. The cubic root of 2243131439 is about 1309.0359511669.

The spelling of 2243131439 in words is "two billion, two hundred forty-three million, one hundred thirty-one thousand, four hundred thirty-nine".