11223534 has 16 divisors (see below), whose sum is σ = 25653888. Its totient is φ = 3206712.

The previous prime is 11223533. The next prime is 11223539. The reversal of 11223534 is 43532211.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11223534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223533) 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 7 ways as a sum of consecutive naturals, for example, 133572 + ... + 133655.

It is an arithmetic number, because the mean of its divisors is an integer number (1603368).

Almost surely, 2^11223534 is an apocalyptic number.

11223534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11223534 is an abundant number, since it is smaller than the sum of its proper divisors (14430354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11223534 is a wasteful number, since it uses less digits than its factorization.

11223534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267239.

The product of its digits is 720, while the sum is 21.

The square root of 11223534 is about 3350.1543248036. The cubic root of 11223534 is about 223.8943884581.

Adding to 11223534 its reverse (43532211), we get a palindrome (54755745).

It can be divided in two parts, 1122 and 3534, that added together give a triangular number (4656 = T₉₆).

The spelling of 11223534 in words is "eleven million, two hundred twenty-three thousand, five hundred thirty-four".