135381280739 has 2 divisors, whose sum is σ = 135381280740. Its totient is φ = 135381280738.

The previous prime is 135381280693. The next prime is 135381280753. The reversal of 135381280739 is 937082183531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135381280739 is a prime.

It is a super-2 number, since 2×135381280739² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135381280439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67690640369 + 67690640370.

It is an arithmetic number, because the mean of its divisors is an integer number (67690640370).

Almost surely, 2^135381280739 is an apocalyptic number.

135381280739 is a deficient number, since it is larger than the sum of its proper divisors (1).

135381280739 is an equidigital number, since it uses as much as digits as its factorization.

135381280739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 135381280739 in words is "one hundred thirty-five billion, three hundred eighty-one million, two hundred eighty thousand, seven hundred thirty-nine".