11227639 has 2 divisors, whose sum is σ = 11227640. Its totient is φ = 11227638.

The previous prime is 11227637. The next prime is 11227663. The reversal of 11227639 is 93672211.

It is a weak prime.

It is an emirp because it is prime and its reverse (93672211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11227639 - 2¹ = 11227637 is a prime.

Together with 11227637, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11227639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11227637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5613819 + 5613820.

It is an arithmetic number, because the mean of its divisors is an integer number (5613820).

Almost surely, 2^11227639 is an apocalyptic number.

11227639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11227639 is an equidigital number, since it uses as much as digits as its factorization.

11227639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 11227639 is about 3350.7669271377. The cubic root of 11227639 is about 223.9216815382.

The spelling of 11227639 in words is "eleven million, two hundred twenty-seven thousand, six hundred thirty-nine".