1163244999 has 32 divisors (see below), whose sum is σ = 1891463680. Its totient is φ = 621084672.

The previous prime is 1163244967. The next prime is 1163245001. The reversal of 1163244999 is 9994423611.

It is a happy number.

It is not a de Polignac number, because 1163244999 - 2⁵ = 1163244967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163244949) 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 31 ways as a sum of consecutive naturals, for example, 9159 + ... + 49095.

It is an arithmetic number, because the mean of its divisors is an integer number (59108240).

Almost surely, 2^1163244999 is an apocalyptic number.

1163244999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1163244999 is a deficient number, since it is larger than the sum of its proper divisors (728218681).

1163244999 is a wasteful number, since it uses less digits than its factorization.

1163244999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40039.

The product of its digits is 419904, while the sum is 48.

The square root of 1163244999 is about 34106.3776880512. The cubic root of 1163244999 is about 1051.6964259579.

The spelling of 1163244999 in words is "one billion, one hundred sixty-three million, two hundred forty-four thousand, nine hundred ninety-nine".