1244304143 has 4 divisors (see below), whose sum is σ = 1256624088. Its totient is φ = 1231984200.

The previous prime is 1244304119. The next prime is 1244304223. The reversal of 1244304143 is 3414034421.

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-1244304143 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 (1244304343) 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, 6159821 + ... + 6160022.

It is an arithmetic number, because the mean of its divisors is an integer number (314156022).

Almost surely, 2^1244304143 is an apocalyptic number.

1244304143 is a deficient number, since it is larger than the sum of its proper divisors (12319945).

1244304143 is a wasteful number, since it uses less digits than its factorization.

1244304143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12319944.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1244304143 is about 35274.6955054186. The cubic root of 1244304143 is about 1075.5786732645.

Adding to 1244304143 its reverse (3414034421), we get a palindrome (4658338564).

The spelling of 1244304143 in words is "one billion, two hundred forty-four million, three hundred four thousand, one hundred forty-three".