11891153 has 2 divisors, whose sum is σ = 11891154. Its totient is φ = 11891152.

The previous prime is 11891129. The next prime is 11891179. The reversal of 11891153 is 35119811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8479744 + 3411409 = 2912^2 + 1847^2 .

It is a cyclic number.

It is not a de Polignac number, because 11891153 - 2¹⁰ = 11890129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11891053) 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, 5945576 + 5945577.

It is an arithmetic number, because the mean of its divisors is an integer number (5945577).

Almost surely, 2^11891153 is an apocalyptic number.

It is an amenable number.

11891153 is a deficient number, since it is larger than the sum of its proper divisors (1).

11891153 is an equidigital number, since it uses as much as digits as its factorization.

11891153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 29.

The square root of 11891153 is about 3448.3551151237. The cubic root of 11891153 is about 228.2485299063.

The spelling of 11891153 in words is "eleven million, eight hundred ninety-one thousand, one hundred fifty-three".