22135544 has 8 divisors (see below), whose sum is σ = 41504160. Its totient is φ = 11067768.

The previous prime is 22135541. The next prime is 22135549. The reversal of 22135544 is 44553122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22135541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383464 + ... + 1383479.

It is an arithmetic number, because the mean of its divisors is an integer number (5188020).

Almost surely, 2^22135544 is an apocalyptic number.

It is an amenable number.

22135544 is a deficient number, since it is larger than the sum of its proper divisors (19368616).

22135544 is a wasteful number, since it uses less digits than its factorization.

22135544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766949 (or 2766945 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 22135544 is about 4704.8426116077. The cubic root of 22135544 is about 280.7782092543.

Adding to 22135544 its reverse (44553122), we get a palindrome (66688666).

The spelling of 22135544 in words is "twenty-two million, one hundred thirty-five thousand, five hundred forty-four".