11534591 has 2 divisors, whose sum is σ = 11534592. Its totient is φ = 11534590.

The previous prime is 11534543. The next prime is 11534597. The reversal of 11534591 is 19543511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11534591 - 2¹⁸ = 11272447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11534597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5767295 + 5767296.

It is an arithmetic number, because the mean of its divisors is an integer number (5767296).

Almost surely, 2^11534591 is an apocalyptic number.

11534591 is a deficient number, since it is larger than the sum of its proper divisors (1).

11534591 is an equidigital number, since it uses as much as digits as its factorization.

11534591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 29.

The square root of 11534591 is about 3396.2613268122. The cubic root of 11534591 is about 225.9439584855.

The spelling of 11534591 in words is "eleven million, five hundred thirty-four thousand, five hundred ninety-one".