134571789 has 12 divisors (see below), whose sum is σ = 212052672. Its totient is φ = 81558600.

The previous prime is 134571769. The next prime is 134571793. The reversal of 134571789 is 987175431.

134571789 is a `hidden beast` number, since 1 + 3 + 4 + 571 + 78 + 9 = 666.

It is not a de Polignac number, because 134571789 - 2¹¹ = 134569741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134571709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 679557 + ... + 679754.

It is an arithmetic number, because the mean of its divisors is an integer number (17671056).

Almost surely, 2^134571789 is an apocalyptic number.

It is an amenable number.

134571789 is a deficient number, since it is larger than the sum of its proper divisors (77480883).

134571789 is a wasteful number, since it uses less digits than its factorization.

134571789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359328 (or 1359325 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 134571789 is about 11600.5081354223. The cubic root of 134571789 is about 512.4498165417.

The spelling of 134571789 in words is "one hundred thirty-four million, five hundred seventy-one thousand, seven hundred eighty-nine".