134643169 has 8 divisors (see below), whose sum is σ = 135859752. Its totient is φ = 133432320.

The previous prime is 134643167. The next prime is 134643217. The reversal of 134643169 is 961346431.

It can be written as a sum of positive squares in 4 ways, for example, as 3196944 + 131446225 = 1788^2 + 11465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134643169 - 2¹ = 134643167 is a prime.

It is a super-2 number, since 2×134643169² = 36257565916725122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134643167) 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 in 7 ways as a sum of consecutive naturals, for example, 55359 + ... + 57739.

It is an arithmetic number, because the mean of its divisors is an integer number (16982469).

Almost surely, 2^134643169 is an apocalyptic number.

It is an amenable number.

134643169 is a deficient number, since it is larger than the sum of its proper divisors (1216583).

134643169 is a wasteful number, since it uses less digits than its factorization.

134643169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867.

The product of its digits is 46656, while the sum is 37.

The square root of 134643169 is about 11603.5843169255. The cubic root of 134643169 is about 512.5404056186.

The spelling of 134643169 in words is "one hundred thirty-four million, six hundred forty-three thousand, one hundred sixty-nine".