135964709 has 2 divisors, whose sum is σ = 135964710. Its totient is φ = 135964708.

The previous prime is 135964681. The next prime is 135964711. The reversal of 135964709 is 907469531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99700225 + 36264484 = 9985^2 + 6022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135964709 is a prime.

Together with 135964711, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135964709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135964739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67982354 + 67982355.

It is an arithmetic number, because the mean of its divisors is an integer number (67982355).

Almost surely, 2^135964709 is an apocalyptic number.

It is an amenable number.

135964709 is a deficient number, since it is larger than the sum of its proper divisors (1).

135964709 is an equidigital number, since it uses as much as digits as its factorization.

135964709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 135964709 is about 11660.3906023769. The cubic root of 135964709 is about 514.2118323724.

The spelling of 135964709 in words is "one hundred thirty-five million, nine hundred sixty-four thousand, seven hundred nine".