134718817 has 2 divisors, whose sum is σ = 134718818. Its totient is φ = 134718816.

The previous prime is 134718811. The next prime is 134718823. The reversal of 134718817 is 718817431.

It is a balanced prime because it is at equal distance from previous prime (134718811) and next prime (134718823).

It can be written as a sum of positive squares in only one way, i.e., 78783376 + 55935441 = 8876^2 + 7479^2 .

It is an emirp because it is prime and its reverse (718817431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134718817 - 2³ = 134718809 is a prime.

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 134718817.

It is not a weakly prime, because it can be changed into another prime (134718811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67359408 + 67359409.

It is an arithmetic number, because the mean of its divisors is an integer number (67359409).

Almost surely, 2^134718817 is an apocalyptic number.

It is an amenable number.

134718817 is a deficient number, since it is larger than the sum of its proper divisors (1).

134718817 is an equidigital number, since it uses as much as digits as its factorization.

134718817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 40.

The square root of 134718817 is about 11606.8435416353. The cubic root of 134718817 is about 512.6363763186.

It can be divided in two parts, 1347 and 18817, that added together give a square (20164 = 142²).

The spelling of 134718817 in words is "one hundred thirty-four million, seven hundred eighteen thousand, eight hundred seventeen".