1143255241 has 4 divisors (see below), whose sum is σ = 1145102800. Its totient is φ = 1141407684.

The previous prime is 1143255203. The next prime is 1143255257. The reversal of 1143255241 is 1425523411.

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 1143255241 - 2⁹ = 1143254729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143258241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922851 + ... + 924088.

It is an arithmetic number, because the mean of its divisors is an integer number (286275700).

Almost surely, 2^1143255241 is an apocalyptic number.

It is an amenable number.

1143255241 is a deficient number, since it is larger than the sum of its proper divisors (1847559).

1143255241 is an equidigital number, since it uses as much as digits as its factorization.

1143255241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847558.

The product of its digits is 4800, while the sum is 28.

The square root of 1143255241 is about 33812.0576274204. The cubic root of 1143255241 is about 1045.6372999571.

Adding to 1143255241 its reverse (1425523411), we get a palindrome (2568778652).

The spelling of 1143255241 in words is "one billion, one hundred forty-three million, two hundred fifty-five thousand, two hundred forty-one".