11111579 has 2 divisors, whose sum is σ = 11111580. Its totient is φ = 11111578.

The previous prime is 11111531. The next prime is 11111621. The reversal of 11111579 is 97511111.

11111579 is digitally balanced in base 2, 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-11111579 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (11111509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555789 + 5555790.

It is an arithmetic number, because the mean of its divisors is an integer number (5555790).

Almost surely, 2^11111579 is an apocalyptic number.

11111579 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111579 is an equidigital number, since it uses as much as digits as its factorization.

11111579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 315, while the sum is 26.

The square root of 11111579 is about 3333.4035159278. The cubic root of 11111579 is about 223.1474488525.

The spelling of 11111579 in words is "eleven million, one hundred eleven thousand, five hundred seventy-nine".