11389229 has 4 divisors (see below), whose sum is σ = 11697084. Its totient is φ = 11081376.

The previous prime is 11389219. The next prime is 11389237. The reversal of 11389229 is 92298311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9954025 + 1435204 = 3155^2 + 1198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11389229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389219) 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 in 3 ways as a sum of consecutive naturals, for example, 153872 + ... + 153945.

It is an arithmetic number, because the mean of its divisors is an integer number (2924271).

Almost surely, 2^11389229 is an apocalyptic number.

It is an amenable number.

11389229 is a deficient number, since it is larger than the sum of its proper divisors (307855).

11389229 is an equidigital number, since it uses as much as digits as its factorization.

11389229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307854.

The product of its digits is 7776, while the sum is 35.

The square root of 11389229 is about 3374.7931788481. The cubic root of 11389229 is about 224.9908078549.

The spelling of 11389229 in words is "eleven million, three hundred eighty-nine thousand, two hundred twenty-nine".