135288841 has 2 divisors, whose sum is σ = 135288842. Its totient is φ = 135288840.

The previous prime is 135288787. The next prime is 135288847. The reversal of 135288841 is 148882531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124791241 + 10497600 = 11171^2 + 3240^2 .

It is a cyclic number.

It is not a de Polignac number, because 135288841 - 2²³ = 126900233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135288794 and 135288803.

It is not a weakly prime, because it can be changed into another prime (135288847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67644420 + 67644421.

It is an arithmetic number, because the mean of its divisors is an integer number (67644421).

Almost surely, 2^135288841 is an apocalyptic number.

It is an amenable number.

135288841 is a deficient number, since it is larger than the sum of its proper divisors (1).

135288841 is an equidigital number, since it uses as much as digits as its factorization.

135288841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 40.

The square root of 135288841 is about 11631.3731347593. The cubic root of 135288841 is about 513.3583835061.

The spelling of 135288841 in words is "one hundred thirty-five million, two hundred eighty-eight thousand, eight hundred forty-one".