11129641 has 2 divisors, whose sum is σ = 11129642. Its totient is φ = 11129640.

The previous prime is 11129639. The next prime is 11129669. The reversal of 11129641 is 14692111.

11129641 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., 7268416 + 3861225 = 2696^2 + 1965^2 .

It is a cyclic number.

It is not a de Polignac number, because 11129641 - 2¹ = 11129639 is a prime.

Together with 11129639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11129681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5564820 + 5564821.

It is an arithmetic number, because the mean of its divisors is an integer number (5564821).

Almost surely, 2^11129641 is an apocalyptic number.

It is an amenable number.

11129641 is a deficient number, since it is larger than the sum of its proper divisors (1).

11129641 is an equidigital number, since it uses as much as digits as its factorization.

11129641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 25.

The square root of 11129641 is about 3336.1116588028. Note that the first 3 decimals coincide. The cubic root of 11129641 is about 223.2682929834.

The spelling of 11129641 in words is "eleven million, one hundred twenty-nine thousand, six hundred forty-one".