11813653 has 2 divisors, whose sum is σ = 11813654. Its totient is φ = 11813652.

The previous prime is 11813621. The next prime is 11813677. The reversal of 11813653 is 35631811.

11813653 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10608049 + 1205604 = 3257^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 11813653 - 2⁵ = 11813621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11883653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5906826 + 5906827.

It is an arithmetic number, because the mean of its divisors is an integer number (5906827).

Almost surely, 2^11813653 is an apocalyptic number.

It is an amenable number.

11813653 is a deficient number, since it is larger than the sum of its proper divisors (1).

11813653 is an equidigital number, since it uses as much as digits as its factorization.

11813653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 11813653 is about 3437.0995039422. The cubic root of 11813653 is about 227.7515825694.

The spelling of 11813653 in words is "eleven million, eight hundred thirteen thousand, six hundred fifty-three".