1143885599 has 8 divisors (see below), whose sum is σ = 1215312960. Its totient is φ = 1074590496.

The previous prime is 1143885539. The next prime is 1143885601. The reversal of 1143885599 is 9955883411.

1143885599 = 2477² + 2478² + ... + 2650².

It is a happy number.

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 1143885599 - 2²⁴ = 1127108383 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 1143885599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143885529) 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, 531959 + ... + 534104.

It is an arithmetic number, because the mean of its divisors is an integer number (151914120).

Almost surely, 2^1143885599 is an apocalyptic number.

1143885599 is a deficient number, since it is larger than the sum of its proper divisors (71427361).

1143885599 is a wasteful number, since it uses less digits than its factorization.

1143885599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066129.

The product of its digits is 1555200, while the sum is 53.

The square root of 1143885599 is about 33821.3778400585. The cubic root of 1143885599 is about 1045.8294427408.

The spelling of 1143885599 in words is "one billion, one hundred forty-three million, eight hundred eighty-five thousand, five hundred ninety-nine".