1143457943 has 8 divisors (see below), whose sum is σ = 1204819200. Its totient is φ = 1082214648.

The previous prime is 1143457933. The next prime is 1143457967. The reversal of 1143457943 is 3497543411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143457943 - 2⁸ = 1143457687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143457943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143457933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9221 + ... + 48702.

It is an arithmetic number, because the mean of its divisors is an integer number (150602400).

Almost surely, 2^1143457943 is an apocalyptic number.

1143457943 is a deficient number, since it is larger than the sum of its proper divisors (61361257).

1143457943 is a wasteful number, since it uses less digits than its factorization.

1143457943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58981.

The product of its digits is 181440, while the sum is 41.

The square root of 1143457943 is about 33815.0549755579. The cubic root of 1143457943 is about 1045.6990943372.

The spelling of 1143457943 in words is "one billion, one hundred forty-three million, four hundred fifty-seven thousand, nine hundred forty-three".