134986217 has 2 divisors, whose sum is σ = 134986218. Its totient is φ = 134986216.

The previous prime is 134986207. The next prime is 134986253. The reversal of 134986217 is 712689431.

134986217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105185536 + 29800681 = 10256^2 + 5459^2 .

It is a cyclic number.

It is not a de Polignac number, because 134986217 - 2¹⁴ = 134969833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134986207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67493108 + 67493109.

It is an arithmetic number, because the mean of its divisors is an integer number (67493109).

Almost surely, 2^134986217 is an apocalyptic number.

It is an amenable number.

134986217 is a deficient number, since it is larger than the sum of its proper divisors (1).

134986217 is an equidigital number, since it uses as much as digits as its factorization.

134986217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 134986217 is about 11618.3568975996. The cubic root of 134986217 is about 512.9753251877.

The spelling of 134986217 in words is "one hundred thirty-four million, nine hundred eighty-six thousand, two hundred seventeen".