134317609 has 2 divisors, whose sum is σ = 134317610. Its totient is φ = 134317608.

The previous prime is 134317553. The next prime is 134317621. The reversal of 134317609 is 906713431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129322384 + 4995225 = 11372^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 134317609 - 2⁷ = 134317481 is a prime.

It is not a weakly prime, because it can be changed into another prime (134317409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67158804 + 67158805.

It is an arithmetic number, because the mean of its divisors is an integer number (67158805).

Almost surely, 2^134317609 is an apocalyptic number.

It is an amenable number.

134317609 is a deficient number, since it is larger than the sum of its proper divisors (1).

134317609 is an equidigital number, since it uses as much as digits as its factorization.

134317609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 134317609 is about 11589.5474027246. The cubic root of 134317609 is about 512.1269737677.

The spelling of 134317609 in words is "one hundred thirty-four million, three hundred seventeen thousand, six hundred nine".