11745491 has 4 divisors (see below), whose sum is σ = 11785872. Its totient is φ = 11705112.

The previous prime is 11745469. The next prime is 11745499. The reversal of 11745491 is 19454711.

It is a happy number.

11745491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11745491 - 2⁶ = 11745427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11745499) 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 in 3 ways as a sum of consecutive naturals, for example, 19751 + ... + 20336.

It is an arithmetic number, because the mean of its divisors is an integer number (2946468).

Almost surely, 2^11745491 is an apocalyptic number.

11745491 is a deficient number, since it is larger than the sum of its proper divisors (40381).

11745491 is an equidigital number, since it uses as much as digits as its factorization.

11745491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40380.

The product of its digits is 5040, while the sum is 32.

The square root of 11745491 is about 3427.1695318440. The cubic root of 11745491 is about 227.3127130664.

The spelling of 11745491 in words is "eleven million, seven hundred forty-five thousand, four hundred ninety-one".