1143253344 has 48 divisors (see below), whose sum is σ = 3005175600. Its totient is φ = 380559360.

The previous prime is 1143253273. The next prime is 1143253369. The reversal of 1143253344 is 4433523411.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65232 + ... + 80880.

It is an arithmetic number, because the mean of its divisors is an integer number (62607825).

Almost surely, 2^1143253344 is an apocalyptic number.

It is an amenable number.

1143253344 is an abundant number, since it is smaller than the sum of its proper divisors (1861922256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143253344 is a wasteful number, since it uses less digits than its factorization.

1143253344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16423 (or 16415 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 1143253344 is about 33812.0295752858. The cubic root of 1143253344 is about 1045.6367216159.

Adding to 1143253344 its reverse (4433523411), we get a palindrome (5576776755).

The spelling of 1143253344 in words is "one billion, one hundred forty-three million, two hundred fifty-three thousand, three hundred forty-four".