10991153 has 2 divisors, whose sum is σ = 10991154. Its totient is φ = 10991152.

The previous prime is 10991131. The next prime is 10991159. The reversal of 10991153 is 35119901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8392609 + 2598544 = 2897^2 + 1612^2 .

It is an emirp because it is prime and its reverse (35119901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10991153 - 2⁶ = 10991089 is a prime.

It is not a weakly prime, because it can be changed into another prime (10991159) 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, 5495576 + 5495577.

It is an arithmetic number, because the mean of its divisors is an integer number (5495577).

Almost surely, 2^10991153 is an apocalyptic number.

It is an amenable number.

10991153 is a deficient number, since it is larger than the sum of its proper divisors (1).

10991153 is an equidigital number, since it uses as much as digits as its factorization.

10991153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 10991153 is about 3315.2907866430. The cubic root of 10991153 is about 222.3383701810.

The spelling of 10991153 in words is "ten million, nine hundred ninety-one thousand, one hundred fifty-three".