134272217 has 2 divisors, whose sum is σ = 134272218. Its totient is φ = 134272216.

The previous prime is 134272213. The next prime is 134272247. The reversal of 134272217 is 712272431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133726096 + 546121 = 11564^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 134272217 - 2² = 134272213 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 134272217.

It is not a weakly prime, because it can be changed into another prime (134272211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67136108 + 67136109.

It is an arithmetic number, because the mean of its divisors is an integer number (67136109).

Almost surely, 2^134272217 is an apocalyptic number.

It is an amenable number.

134272217 is a deficient number, since it is larger than the sum of its proper divisors (1).

134272217 is an equidigital number, since it uses as much as digits as its factorization.

134272217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 134272217 is about 11587.5889209102. The cubic root of 134272217 is about 512.0692769724.

The spelling of 134272217 in words is "one hundred thirty-four million, two hundred seventy-two thousand, two hundred seventeen".