11057229 has 12 divisors (see below), whose sum is σ = 16563456. Its totient is φ = 7371324.

The previous prime is 11057213. The next prime is 11057239. The reversal of 11057229 is 92275011.

It is not a de Polignac number, because 11057229 - 2⁴ = 11057213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11057209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22509 + ... + 22994.

It is an arithmetic number, because the mean of its divisors is an integer number (1380288).

Almost surely, 2^11057229 is an apocalyptic number.

It is an amenable number.

11057229 is a deficient number, since it is larger than the sum of its proper divisors (5506227).

11057229 is an frugal number, since it uses more digits than its factorization.

11057229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45518 (or 45506 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 11057229 is about 3325.2411942594. The cubic root of 11057229 is about 222.7830274464.

The spelling of 11057229 in words is "eleven million, fifty-seven thousand, two hundred twenty-nine".