1143307829 has 4 divisors (see below), whose sum is σ = 1157780160. Its totient is φ = 1128835500.

The previous prime is 1143307813. The next prime is 1143307849. The reversal of 1143307829 is 9287033411.

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 1143307829 - 2⁴ = 1143307813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143307792 and 1143307801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143307849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7236047 + ... + 7236204.

It is an arithmetic number, because the mean of its divisors is an integer number (289445040).

Almost surely, 2^1143307829 is an apocalyptic number.

It is an amenable number.

1143307829 is a deficient number, since it is larger than the sum of its proper divisors (14472331).

1143307829 is an equidigital number, since it uses as much as digits as its factorization.

1143307829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14472330.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1143307829 is about 33812.8352700568. The cubic root of 1143307829 is about 1045.6533322858.

The spelling of 1143307829 in words is "one billion, one hundred forty-three million, three hundred seven thousand, eight hundred twenty-nine".