135500042449 has 2 divisors, whose sum is σ = 135500042450. Its totient is φ = 135500042448.

The previous prime is 135500042437. The next prime is 135500042467. The reversal of 135500042449 is 944240005531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134959247424 + 540795025 = 367368^2 + 23255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135500042449 is a prime.

It is not a weakly prime, because it can be changed into another prime (135500042429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67750021224 + 67750021225.

It is an arithmetic number, because the mean of its divisors is an integer number (67750021225).

Almost surely, 2^135500042449 is an apocalyptic number.

It is an amenable number.

135500042449 is a deficient number, since it is larger than the sum of its proper divisors (1).

135500042449 is an equidigital number, since it uses as much as digits as its factorization.

135500042449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 135500042449 in words is "one hundred thirty-five billion, five hundred million, forty-two thousand, four hundred forty-nine".