11129639 has 2 divisors, whose sum is σ = 11129640. Its totient is φ = 11129638.

The previous prime is 11129627. The next prime is 11129641. The reversal of 11129639 is 93692111.

It is a strong prime.

It is an emirp because it is prime and its reverse (93692111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11129639 - 2⁴ = 11129623 is a prime.

Together with 11129641, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11129669) 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, 5564819 + 5564820.

It is an arithmetic number, because the mean of its divisors is an integer number (5564820).

Almost surely, 2^11129639 is an apocalyptic number.

11129639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11129639 is an equidigital number, since it uses as much as digits as its factorization.

11129639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 32.

The square root of 11129639 is about 3336.1113590526. Note that the first 3 decimals coincide. The cubic root of 11129639 is about 223.2682796096.

The spelling of 11129639 in words is "eleven million, one hundred twenty-nine thousand, six hundred thirty-nine".