134343217 has 4 divisors (see below), whose sum is σ = 134386420. Its totient is φ = 134300016.

The previous prime is 134343211. The next prime is 134343227. The reversal of 134343217 is 712343431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130165281 + 4177936 = 11409^2 + 2044^2 .

It is a cyclic number.

It is not a de Polignac number, because 134343217 - 2⁷ = 134343089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134343211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16542 + ... + 23287.

It is an arithmetic number, because the mean of its divisors is an integer number (33596605).

Almost surely, 2^134343217 is an apocalyptic number.

It is an amenable number.

134343217 is a deficient number, since it is larger than the sum of its proper divisors (43203).

134343217 is an equidigital number, since it uses as much as digits as its factorization.

134343217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43202.

The product of its digits is 6048, while the sum is 28.

The square root of 134343217 is about 11590.6521386849. The cubic root of 134343217 is about 512.1595178108.

Adding to 134343217 its reverse (712343431), we get a palindrome (846686648).

The spelling of 134343217 in words is "one hundred thirty-four million, three hundred forty-three thousand, two hundred seventeen".