11745091 has 2 divisors, whose sum is σ = 11745092. Its totient is φ = 11745090.

The previous prime is 11745089. The next prime is 11745109. The reversal of 11745091 is 19054711.

Together with next prime (11745109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11745091 - 2¹ = 11745089 is a prime.

Together with 11745089, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11745031) 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, 5872545 + 5872546.

It is an arithmetic number, because the mean of its divisors is an integer number (5872546).

Almost surely, 2^11745091 is an apocalyptic number.

11745091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11745091 is an equidigital number, since it uses as much as digits as its factorization.

11745091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 11745091 is about 3427.1111741524. Note that the first 4 decimals coincide. The cubic root of 11745091 is about 227.3101326118.

The spelling of 11745091 in words is "eleven million, seven hundred forty-five thousand, ninety-one".