135603596342437 has 2 divisors, whose sum is σ = 135603596342438. Its totient is φ = 135603596342436.

The previous prime is 135603596342371. The next prime is 135603596342509. The reversal of 135603596342437 is 734243695306531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70262467117441 + 65341129224996 = 8382271^2 + 8083386^2 .

It is a cyclic number.

It is not a de Polignac number, because 135603596342437 - 2³⁵ = 135569236604069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135603546342437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67801798171218 + 67801798171219.

It is an arithmetic number, because the mean of its divisors is an integer number (67801798171219).

Almost surely, 2^{135603596342437} is an apocalyptic number.

It is an amenable number.

135603596342437 is a deficient number, since it is larger than the sum of its proper divisors (1).

135603596342437 is an equidigital number, since it uses as much as digits as its factorization.

135603596342437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 146966400, while the sum is 61.

The spelling of 135603596342437 in words is "one hundred thirty-five trillion, six hundred three billion, five hundred ninety-six million, three hundred forty-two thousand, four hundred thirty-seven".