134561671 has 2 divisors, whose sum is σ = 134561672. Its totient is φ = 134561670.

The previous prime is 134561659. The next prime is 134561677. The reversal of 134561671 is 176165431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134561671 - 2¹⁹ = 134037383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134561677) 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, 67280835 + 67280836.

It is an arithmetic number, because the mean of its divisors is an integer number (67280836).

Almost surely, 2^134561671 is an apocalyptic number.

134561671 is a deficient number, since it is larger than the sum of its proper divisors (1).

134561671 is an equidigital number, since it uses as much as digits as its factorization.

134561671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 134561671 is about 11600.0720256385. The cubic root of 134561671 is about 512.4369730940.

The spelling of 134561671 in words is "one hundred thirty-four million, five hundred sixty-one thousand, six hundred seventy-one".