1143302409 has 24 divisors (see below), whose sum is σ = 1798305600. Its totient is φ = 697183200.

The previous prime is 1143302359. The next prime is 1143302429. The reversal of 1143302409 is 9042033411.

It is not a de Polignac number, because 1143302409 - 2²⁴ = 1126525193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1143302429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110317 + ... + 120234.

It is an arithmetic number, because the mean of its divisors is an integer number (74929400).

Almost surely, 2^1143302409 is an apocalyptic number.

1143302409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1143302409 is a deficient number, since it is larger than the sum of its proper divisors (655003191).

1143302409 is a wasteful number, since it uses less digits than its factorization.

1143302409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230605 (or 230602 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1143302409 is about 33812.7551228823. The cubic root of 1143302409 is about 1045.6516799311.

The spelling of 1143302409 in words is "one billion, one hundred forty-three million, three hundred two thousand, four hundred nine".