11641811 has 2 divisors, whose sum is σ = 11641812. Its totient is φ = 11641810.

The previous prime is 11641807. The next prime is 11641837. The reversal of 11641811 is 11814611.

11641811 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11641811 - 2² = 11641807 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11641871) 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, 5820905 + 5820906.

It is an arithmetic number, because the mean of its divisors is an integer number (5820906).

Almost surely, 2^11641811 is an apocalyptic number.

11641811 is a deficient number, since it is larger than the sum of its proper divisors (1).

11641811 is an equidigital number, since it uses as much as digits as its factorization.

11641811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 23.

The square root of 11641811 is about 3412.0098182743. The cubic root of 11641811 is about 226.6418891120.

The spelling of 11641811 in words is "eleven million, six hundred forty-one thousand, eight hundred eleven".