11649511 has 2 divisors, whose sum is σ = 11649512. Its totient is φ = 11649510.

The previous prime is 11649493. The next prime is 11649529. The reversal of 11649511 is 11594611.

11649511 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11649493) and next prime (11649529).

It is a cyclic number.

It is not a de Polignac number, because 11649511 - 2⁵ = 11649479 is a prime.

It is a super-2 number, since 2×11649511² = 271422213078242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11649511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11649551) 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, 5824755 + 5824756.

It is an arithmetic number, because the mean of its divisors is an integer number (5824756).

Almost surely, 2^11649511 is an apocalyptic number.

11649511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11649511 is an equidigital number, since it uses as much as digits as its factorization.

11649511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 28.

The square root of 11649511 is about 3413.1379989681. The cubic root of 11649511 is about 226.6918457708.

The spelling of 11649511 in words is "eleven million, six hundred forty-nine thousand, five hundred eleven".