134427561 has 8 divisors (see below), whose sum is σ = 183608544. Its totient is φ = 87432480.

The previous prime is 134427541. The next prime is 134427569. The reversal of 134427561 is 165724431.

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

It is not a de Polignac number, because 134427561 - 2⁶ = 134427497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134427569) 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 7 ways as a sum of consecutive naturals, for example, 546331 + ... + 546576.

It is an arithmetic number, because the mean of its divisors is an integer number (22951068).

Almost surely, 2^134427561 is an apocalyptic number.

It is an amenable number.

134427561 is a deficient number, since it is larger than the sum of its proper divisors (49180983).

134427561 is a wasteful number, since it uses less digits than its factorization.

134427561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092951.

The product of its digits is 20160, while the sum is 33.

The square root of 134427561 is about 11594.2900170731. The cubic root of 134427561 is about 512.2666775328.

The spelling of 134427561 in words is "one hundred thirty-four million, four hundred twenty-seven thousand, five hundred sixty-one".