135706826501 has 2 divisors, whose sum is σ = 135706826502. Its totient is φ = 135706826500.

The previous prime is 135706826491. The next prime is 135706826509. The reversal of 135706826501 is 105628607531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91929633601 + 43777192900 = 303199^2 + 209230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135706826501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135706826509) 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, 67853413250 + 67853413251.

It is an arithmetic number, because the mean of its divisors is an integer number (67853413251).

Almost surely, 2^135706826501 is an apocalyptic number.

It is an amenable number.

135706826501 is a deficient number, since it is larger than the sum of its proper divisors (1).

135706826501 is an equidigital number, since it uses as much as digits as its factorization.

135706826501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 135706826501 in words is "one hundred thirty-five billion, seven hundred six million, eight hundred twenty-six thousand, five hundred one".