134289217 has 2 divisors, whose sum is σ = 134289218. Its totient is φ = 134289216.

The previous prime is 134289193. The next prime is 134289223. The reversal of 134289217 is 712982431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101123136 + 33166081 = 10056^2 + 5759^2 .

It is a cyclic number.

It is not a de Polignac number, because 134289217 - 2¹⁹ = 133764929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134289247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67144608 + 67144609.

It is an arithmetic number, because the mean of its divisors is an integer number (67144609).

Almost surely, 2^134289217 is an apocalyptic number.

It is an amenable number.

134289217 is a deficient number, since it is larger than the sum of its proper divisors (1).

134289217 is an equidigital number, since it uses as much as digits as its factorization.

134289217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 134289217 is about 11588.3224411474. The cubic root of 134289217 is about 512.0908868297.

The spelling of 134289217 in words is "one hundred thirty-four million, two hundred eighty-nine thousand, two hundred seventeen".