134649589 has 2 divisors, whose sum is σ = 134649590. Its totient is φ = 134649588.

The previous prime is 134649551. The next prime is 134649607. The reversal of 134649589 is 985946431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134328100 + 321489 = 11590^2 + 567^2 .

It is a cyclic number.

It is not a de Polignac number, because 134649589 - 2⁹ = 134649077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134649539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67324794 + 67324795.

It is an arithmetic number, because the mean of its divisors is an integer number (67324795).

Almost surely, 2^134649589 is an apocalyptic number.

It is an amenable number.

134649589 is a deficient number, since it is larger than the sum of its proper divisors (1).

134649589 is an equidigital number, since it uses as much as digits as its factorization.

134649589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 134649589 is about 11603.8609522865. The cubic root of 134649589 is about 512.5485517358.

The spelling of 134649589 in words is "one hundred thirty-four million, six hundred forty-nine thousand, five hundred eighty-nine".