11137223 has 4 divisors (see below), whose sum is σ = 11175528. Its totient is φ = 11098920.

The previous prime is 11137219. The next prime is 11137241. The reversal of 11137223 is 32273111.

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

It is a cyclic number.

It is not a de Polignac number, because 11137223 - 2² = 11137219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11137195 and 11137204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11137283) 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, 18713 + ... + 19298.

It is an arithmetic number, because the mean of its divisors is an integer number (2793882).

Almost surely, 2^11137223 is an apocalyptic number.

11137223 is a deficient number, since it is larger than the sum of its proper divisors (38305).

11137223 is an equidigital number, since it uses as much as digits as its factorization.

11137223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38304.

The product of its digits is 252, while the sum is 20.

The square root of 11137223 is about 3337.2478181879. The cubic root of 11137223 is about 223.3189815287.

It can be divided in two parts, 11 and 137223, that multiplied together give a triangular number (1509453 = T₁₇₃₇).

The spelling of 11137223 in words is "eleven million, one hundred thirty-seven thousand, two hundred twenty-three".