135263599501 has 2 divisors, whose sum is σ = 135263599502. Its totient is φ = 135263599500.

The previous prime is 135263599469. The next prime is 135263599547. The reversal of 135263599501 is 105995362531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87870744900 + 47392854601 = 296430^2 + 217699^2 .

It is a cyclic number.

It is not a de Polignac number, because 135263599501 - 2⁵ = 135263599469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135263099501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67631799750 + 67631799751.

It is an arithmetic number, because the mean of its divisors is an integer number (67631799751).

Almost surely, 2^135263599501 is an apocalyptic number.

It is an amenable number.

135263599501 is a deficient number, since it is larger than the sum of its proper divisors (1).

135263599501 is an equidigital number, since it uses as much as digits as its factorization.

135263599501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1093500, while the sum is 49.

The spelling of 135263599501 in words is "one hundred thirty-five billion, two hundred sixty-three million, five hundred ninety-nine thousand, five hundred one".