1147133799 has 32 divisors (see below), whose sum is σ = 1966848000. Its totient is φ = 647199072.

The previous prime is 1147133789. The next prime is 1147133909. The reversal of 1147133799 is 9973317411.

It is not a de Polignac number, because 1147133799 - 2¹⁵ = 1147101031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147133719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23484 + ... + 53345.

It is an arithmetic number, because the mean of its divisors is an integer number (61464000).

Almost surely, 2^1147133799 is an apocalyptic number.

1147133799 is a deficient number, since it is larger than the sum of its proper divisors (819714201).

1147133799 is an equidigital number, since it uses as much as digits as its factorization.

1147133799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76924 (or 76918 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 1147133799 is about 33869.3637229872. The cubic root of 1147133799 is about 1046.8184264894.

The spelling of 1147133799 in words is "one billion, one hundred forty-seven million, one hundred thirty-three thousand, seven hundred ninety-nine".