22136361 has 16 divisors (see below), whose sum is σ = 32073216. Its totient is φ = 13499136.

The previous prime is 22136341. The next prime is 22136369. The reversal of 22136361 is 16363122.

It is a happy number.

It is not a de Polignac number, because 22136361 - 2⁶ = 22136297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22136369) 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 15 ways as a sum of consecutive naturals, for example, 1896 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (2004576).

Almost surely, 2^22136361 is an apocalyptic number.

It is an amenable number.

22136361 is a deficient number, since it is larger than the sum of its proper divisors (9936855).

22136361 is a wasteful number, since it uses less digits than its factorization.

22136361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152.

The product of its digits is 1296, while the sum is 24.

The square root of 22136361 is about 4704.9294362403. The cubic root of 22136361 is about 280.7816636227.

Adding to 22136361 its reverse (16363122), we get a palindrome (38499483).

The spelling of 22136361 in words is "twenty-two million, one hundred thirty-six thousand, three hundred sixty-one".