11532991 has 2 divisors, whose sum is σ = 11532992. Its totient is φ = 11532990.

The previous prime is 11532977. The next prime is 11533003. The reversal of 11532991 is 19923511.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19923511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11532991 is a prime.

It is a Chen prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11530991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5766495 + 5766496.

It is an arithmetic number, because the mean of its divisors is an integer number (5766496).

Almost surely, 2^11532991 is an apocalyptic number.

11532991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11532991 is an equidigital number, since it uses as much as digits as its factorization.

11532991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 31.

The square root of 11532991 is about 3396.0257655089. The cubic root of 11532991 is about 225.9335108661.

The spelling of 11532991 in words is "eleven million, five hundred thirty-two thousand, nine hundred ninety-one".