11581799 has 2 divisors, whose sum is σ = 11581800. Its totient is φ = 11581798.

The previous prime is 11581793. The next prime is 11581807. The reversal of 11581799 is 99718511.

11581799 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11581799 - 2⁴ = 11581783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11581793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5790899 + 5790900.

It is an arithmetic number, because the mean of its divisors is an integer number (5790900).

Almost surely, 2^11581799 is an apocalyptic number.

11581799 is a deficient number, since it is larger than the sum of its proper divisors (1).

11581799 is an equidigital number, since it uses as much as digits as its factorization.

11581799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 41.

The square root of 11581799 is about 3403.2042254323. The cubic root of 11581799 is about 226.2517816776.

The spelling of 11581799 in words is "eleven million, five hundred eighty-one thousand, seven hundred ninety-nine".