134312209 has 2 divisors, whose sum is σ = 134312210. Its totient is φ = 134312208.

The previous prime is 134312161. The next prime is 134312219. The reversal of 134312209 is 902213431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78854400 + 55457809 = 8880^2 + 7447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134312209 is a prime.

It is not a weakly prime, because it can be changed into another prime (134312219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67156104 + 67156105.

It is an arithmetic number, because the mean of its divisors is an integer number (67156105).

Almost surely, 2^134312209 is an apocalyptic number.

It is an amenable number.

134312209 is a deficient number, since it is larger than the sum of its proper divisors (1).

134312209 is an equidigital number, since it uses as much as digits as its factorization.

134312209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 134312209 is about 11589.3144318376. The cubic root of 134312209 is about 512.1201106250.

The spelling of 134312209 in words is "one hundred thirty-four million, three hundred twelve thousand, two hundred nine".