135264648344557 has 2 divisors, whose sum is σ = 135264648344558. Its totient is φ = 135264648344556.

The previous prime is 135264648344537. The next prime is 135264648344569. The reversal of 135264648344557 is 755443846462531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135239548596516 + 25099748041 = 11629254^2 + 158429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135264648344557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135264648344492 and 135264648344501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135264648344537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67632324172278 + 67632324172279.

It is an arithmetic number, because the mean of its divisors is an integer number (67632324172279).

Almost surely, 2^{135264648344557} is an apocalyptic number.

It is an amenable number.

135264648344557 is a deficient number, since it is larger than the sum of its proper divisors (1).

135264648344557 is an equidigital number, since it uses as much as digits as its factorization.

135264648344557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216000, while the sum is 67.

The spelling of 135264648344557 in words is "one hundred thirty-five trillion, two hundred sixty-four billion, six hundred forty-eight million, three hundred forty-four thousand, five hundred fifty-seven".