1204144243 has 4 divisors (see below), whose sum is σ = 1236688720. Its totient is φ = 1171599768.

The previous prime is 1204144237. The next prime is 1204144261. The reversal of 1204144243 is 3424414021.

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

It is a cyclic number.

It is not a de Polignac number, because 1204144243 - 2¹³ = 1204136051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204144213) 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, 16272183 + ... + 16272256.

It is an arithmetic number, because the mean of its divisors is an integer number (309172180).

Almost surely, 2^1204144243 is an apocalyptic number.

1204144243 is a deficient number, since it is larger than the sum of its proper divisors (32544477).

1204144243 is an equidigital number, since it uses as much as digits as its factorization.

1204144243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32544476.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1204144243 is about 34700.7815906213. The cubic root of 1204144243 is about 1063.8804734460.

Adding to 1204144243 its reverse (3424414021), we get a palindrome (4628558264).

The spelling of 1204144243 in words is "one billion, two hundred four million, one hundred forty-four thousand, two hundred forty-three".