22535129 has 2 divisors, whose sum is σ = 22535130. Its totient is φ = 22535128.

The previous prime is 22535119. The next prime is 22535131. The reversal of 22535129 is 92153522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21603904 + 931225 = 4648^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 22535129 - 2⁴ = 22535113 is a prime.

Together with 22535131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22535119) 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, 11267564 + 11267565.

It is an arithmetic number, because the mean of its divisors is an integer number (11267565).

Almost surely, 2^22535129 is an apocalyptic number.

It is an amenable number.

22535129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22535129 is an equidigital number, since it uses as much as digits as its factorization.

22535129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 22535129 is about 4747.1179677779. The cubic root of 22535129 is about 282.4576551771.

The spelling of 22535129 in words is "twenty-two million, five hundred thirty-five thousand, one hundred twenty-nine".