22536131 has 2 divisors, whose sum is σ = 22536132. Its totient is φ = 22536130.

The previous prime is 22536127. The next prime is 22536133. The reversal of 22536131 is 13163522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22536131 - 2² = 22536127 is a prime.

It is a super-2 number, since 2×22536131² = 1015754400898322, which contains 22 as substring.

Together with 22536133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22536097 and 22536106.

It is not a weakly prime, because it can be changed into another prime (22536133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11268065 + 11268066.

It is an arithmetic number, because the mean of its divisors is an integer number (11268066).

Almost surely, 2^22536131 is an apocalyptic number.

22536131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22536131 is an equidigital number, since it uses as much as digits as its factorization.

22536131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 22536131 is about 4747.2235043233. The cubic root of 22536131 is about 282.4618415059.

Adding to 22536131 its reverse (13163522), we get a palindrome (35699653).

The spelling of 22536131 in words is "twenty-two million, five hundred thirty-six thousand, one hundred thirty-one".