11919653 has 2 divisors, whose sum is σ = 11919654. Its totient is φ = 11919652.

The previous prime is 11919637. The next prime is 11919671. The reversal of 11919653 is 35691911.

11919653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11404129 + 515524 = 3377^2 + 718^2 .

It is an emirp because it is prime and its reverse (35691911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11919653 - 2⁴ = 11919637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11919683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5959826 + 5959827.

It is an arithmetic number, because the mean of its divisors is an integer number (5959827).

Almost surely, 2^11919653 is an apocalyptic number.

It is an amenable number.

11919653 is a deficient number, since it is larger than the sum of its proper divisors (1).

11919653 is an equidigital number, since it uses as much as digits as its factorization.

11919653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 35.

The square root of 11919653 is about 3452.4850470350. The cubic root of 11919653 is about 228.4307351983.

The spelling of 11919653 in words is "eleven million, nine hundred nineteen thousand, six hundred fifty-three".