134678296309 has 2 divisors, whose sum is σ = 134678296310. Its totient is φ = 134678296308.

The previous prime is 134678296217. The next prime is 134678296321. The reversal of 134678296309 is 903692876431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128146100625 + 6532195684 = 357975^2 + 80822^2 .

It is an emirp because it is prime and its reverse (903692876431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134678296309 - 2²¹ = 134676199157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134678296399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67339148154 + 67339148155.

It is an arithmetic number, because the mean of its divisors is an integer number (67339148155).

Almost surely, 2^134678296309 is an apocalyptic number.

It is an amenable number.

134678296309 is a deficient number, since it is larger than the sum of its proper divisors (1).

134678296309 is an equidigital number, since it uses as much as digits as its factorization.

134678296309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 134678296309 in words is "one hundred thirty-four billion, six hundred seventy-eight million, two hundred ninety-six thousand, three hundred nine".