11806451 has 4 divisors (see below), whose sum is σ = 12213600. Its totient is φ = 11399304.

The previous prime is 11806423. The next prime is 11806453. The reversal of 11806451 is 15460811.

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 11806451 - 2⁶ = 11806387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11806451.

It is not an unprimeable number, because it can be changed into a prime (11806453) 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, 203531 + ... + 203588.

It is an arithmetic number, because the mean of its divisors is an integer number (3053400).

Almost surely, 2^11806451 is an apocalyptic number.

11806451 is a deficient number, since it is larger than the sum of its proper divisors (407149).

11806451 is an equidigital number, since it uses as much as digits as its factorization.

11806451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407148.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 11806451 is about 3436.0516585174. The cubic root of 11806451 is about 227.7052914876.

The spelling of 11806451 in words is "eleven million, eight hundred six thousand, four hundred fifty-one".