1143132723 has 16 divisors (see below), whose sum is σ = 1739302560. Its totient is φ = 741490848.

The previous prime is 1143132721. The next prime is 1143132743. The reversal of 1143132723 is 3272313411.

It is a happy number.

It is not a de Polignac number, because 1143132723 - 2¹ = 1143132721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1143132721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571140 + ... + 573137.

It is an arithmetic number, because the mean of its divisors is an integer number (108706410).

Almost surely, 2^1143132723 is an apocalyptic number.

1143132723 is a deficient number, since it is larger than the sum of its proper divisors (596169837).

1143132723 is a wasteful number, since it uses less digits than its factorization.

1143132723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144323 (or 1144317 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 1143132723 is about 33810.2458287425. The cubic root of 1143132723 is about 1045.5999463949.

The spelling of 1143132723 in words is "one billion, one hundred forty-three million, one hundred thirty-two thousand, seven hundred twenty-three".