135558641 has 2 divisors, whose sum is σ = 135558642. Its totient is φ = 135558640.

The previous prime is 135558617. The next prime is 135558677. The reversal of 135558641 is 146855531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 15437041 = 10960^2 + 3929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135558641 is a prime.

It is a super-2 number, since 2×135558641² = 36752290299533762, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 135558595 and 135558604.

It is not a weakly prime, because it can be changed into another prime (135551641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67779320 + 67779321.

It is an arithmetic number, because the mean of its divisors is an integer number (67779321).

Almost surely, 2^135558641 is an apocalyptic number.

It is an amenable number.

135558641 is a deficient number, since it is larger than the sum of its proper divisors (1).

135558641 is an equidigital number, since it uses as much as digits as its factorization.

135558641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 38.

The square root of 135558641 is about 11642.9653009875. The cubic root of 135558641 is about 513.6994121823.

The spelling of 135558641 in words is "one hundred thirty-five million, five hundred fifty-eight thousand, six hundred forty-one".