134666549 has 4 divisors (see below), whose sum is σ = 134698764. Its totient is φ = 134634336.

The previous prime is 134666527. The next prime is 134666551. The reversal of 134666549 is 945666431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42640900 + 92025649 = 6530^2 + 9593^2 .

It is a cyclic number.

It is not a de Polignac number, because 134666549 - 2⁸ = 134666293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134666599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8702 + ... + 18575.

It is an arithmetic number, because the mean of its divisors is an integer number (33674691).

Almost surely, 2^134666549 is an apocalyptic number.

It is an amenable number.

134666549 is a deficient number, since it is larger than the sum of its proper divisors (32215).

134666549 is an equidigital number, since it uses as much as digits as its factorization.

134666549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32214.

The product of its digits is 466560, while the sum is 44.

The square root of 134666549 is about 11604.5917205217. The cubic root of 134666549 is about 512.5700704511.

The spelling of 134666549 in words is "one hundred thirty-four million, six hundred sixty-six thousand, five hundred forty-nine".