11530091 has 2 divisors, whose sum is σ = 11530092. Its totient is φ = 11530090.

The previous prime is 11530069. The next prime is 11530117. The reversal of 11530091 is 19003511.

It is a weak prime.

It is an emirp because it is prime and its reverse (19003511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11530091 - 2⁶ = 11530027 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11530031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765045 + 5765046.

It is an arithmetic number, because the mean of its divisors is an integer number (5765046).

Almost surely, 2^11530091 is an apocalyptic number.

11530091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11530091 is an equidigital number, since it uses as much as digits as its factorization.

11530091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 11530091 is about 3395.5987689949. The cubic root of 11530091 is about 225.9145720928.

The spelling of 11530091 in words is "eleven million, five hundred thirty thousand, ninety-one".