11581079 has 2 divisors, whose sum is σ = 11581080. Its totient is φ = 11581078.

The previous prime is 11581069. The next prime is 11581081. The reversal of 11581079 is 97018511.

11581079 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11581079 is a prime.

Together with 11581081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11581049) 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, 5790539 + 5790540.

It is an arithmetic number, because the mean of its divisors is an integer number (5790540).

Almost surely, 2^11581079 is an apocalyptic number.

11581079 is a deficient number, since it is larger than the sum of its proper divisors (1).

11581079 is an equidigital number, since it uses as much as digits as its factorization.

11581079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 11581079 is about 3403.0984411269. The cubic root of 11581079 is about 226.2470931527.

The spelling of 11581079 in words is "eleven million, five hundred eighty-one thousand, seventy-nine".