135381282769 has 2 divisors, whose sum is σ = 135381282770. Its totient is φ = 135381282768.

The previous prime is 135381282763. The next prime is 135381282797. The reversal of 135381282769 is 967282183531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135359239744 + 22043025 = 367912^2 + 4695^2 .

It is an emirp because it is prime and its reverse (967282183531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135381282769 - 2¹⁵ = 135381250001 is a prime.

It is a super-2 number, since 2×135381282769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135381282763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67690641384 + 67690641385.

It is an arithmetic number, because the mean of its divisors is an integer number (67690641385).

Almost surely, 2^135381282769 is an apocalyptic number.

It is an amenable number.

135381282769 is a deficient number, since it is larger than the sum of its proper divisors (1).

135381282769 is an equidigital number, since it uses as much as digits as its factorization.

135381282769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 55.

The spelling of 135381282769 in words is "one hundred thirty-five billion, three hundred eighty-one million, two hundred eighty-two thousand, seven hundred sixty-nine".