134725609 has 2 divisors, whose sum is σ = 134725610. Its totient is φ = 134725608.

The previous prime is 134725589. The next prime is 134725639. The reversal of 134725609 is 906527431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133333209 + 1392400 = 11547^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 134725609 - 2¹⁹ = 134201321 is a prime.

It is not a weakly prime, because it can be changed into another prime (134725639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67362804 + 67362805.

It is an arithmetic number, because the mean of its divisors is an integer number (67362805).

Almost surely, 2^134725609 is an apocalyptic number.

It is an amenable number.

134725609 is a deficient number, since it is larger than the sum of its proper divisors (1).

134725609 is an equidigital number, since it uses as much as digits as its factorization.

134725609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 134725609 is about 11607.1361239541. The cubic root of 134725609 is about 512.6449912194.

The spelling of 134725609 in words is "one hundred thirty-four million, seven hundred twenty-five thousand, six hundred nine".