1143995329 has 9 divisors (see below), whose sum is σ = 1156820707. Its totient is φ = 1131311704.

The previous prime is 1143995327. The next prime is 1143995383. The reversal of 1143995329 is 9235993411.

The square root of 1143995329 is 33823.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 134026929 + 1009968400 = 11577^2 + 31780^2 .

It is not a de Polignac number, because 1143995329 - 2¹ = 1143995327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143995323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5039514 + ... + 5039740.

Almost surely, 2^1143995329 is an apocalyptic number.

1143995329 is the 33823-rd square number.

1143995329 is the 16912-nd centered octagonal number.

It is an amenable number.

1143995329 is a deficient number, since it is larger than the sum of its proper divisors (12825378).

1143995329 is an frugal number, since it uses more digits than its factorization.

1143995329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 376 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The cubic root of 1143995329 is about 1045.8628829133.

The spelling of 1143995329 in words is "one billion, one hundred forty-three million, nine hundred ninety-five thousand, three hundred twenty-nine".