11523593 has 2 divisors, whose sum is σ = 11523594. Its totient is φ = 11523592.

The previous prime is 11523581. The next prime is 11523641. The reversal of 11523593 is 39532511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6801664 + 4721929 = 2608^2 + 2173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11523593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11523553) 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, 5761796 + 5761797.

It is an arithmetic number, because the mean of its divisors is an integer number (5761797).

Almost surely, 2^11523593 is an apocalyptic number.

It is an amenable number.

11523593 is a deficient number, since it is larger than the sum of its proper divisors (1).

11523593 is an equidigital number, since it uses as much as digits as its factorization.

11523593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 29.

The square root of 11523593 is about 3394.6418073193. The cubic root of 11523593 is about 225.8721246467.

The spelling of 11523593 in words is "eleven million, five hundred twenty-three thousand, five hundred ninety-three".