135690240593 has 2 divisors, whose sum is σ = 135690240594. Its totient is φ = 135690240592.

The previous prime is 135690240541. The next prime is 135690240641. The reversal of 135690240593 is 395042096531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125211237904 + 10479002689 = 353852^2 + 102367^2 .

It is a cyclic number.

It is not a de Polignac number, because 135690240593 - 2²⁰ = 135689192017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (135690240493) 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, 67845120296 + 67845120297.

It is an arithmetic number, because the mean of its divisors is an integer number (67845120297).

Almost surely, 2^135690240593 is an apocalyptic number.

It is an amenable number.

135690240593 is a deficient number, since it is larger than the sum of its proper divisors (1).

135690240593 is an equidigital number, since it uses as much as digits as its factorization.

135690240593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 874800, while the sum is 47.

The spelling of 135690240593 in words is "one hundred thirty-five billion, six hundred ninety million, two hundred forty thousand, five hundred ninety-three".