11754561 has 24 divisors (see below), whose sum is σ = 19637184. Its totient is φ = 6199200.

The previous prime is 11754539. The next prime is 11754569. The reversal of 11754561 is 16545711.

It is not a de Polignac number, because 11754561 - 2¹¹ = 11752513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11754569) by changing a digit.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1165 + ... + 4986.

It is an arithmetic number, because the mean of its divisors is an integer number (818216).

Almost surely, 2^11754561 is an apocalyptic number.

It is an amenable number.

11754561 is a deficient number, since it is larger than the sum of its proper divisors (7882623).

11754561 is a wasteful number, since it uses less digits than its factorization.

11754561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181 (or 6174 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The square root of 11754561 is about 3428.4925258778. The cubic root of 11754561 is about 227.3712091548.

The spelling of 11754561 in words is "eleven million, seven hundred fifty-four thousand, five hundred sixty-one".