134097561 has 12 divisors (see below), whose sum is σ = 208596388. Its totient is φ = 82521504.

The previous prime is 134097529. The next prime is 134097563. The reversal of 134097561 is 165790431.

134097561 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 97 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45643536 + 88454025 = 6756^2 + 9405^2 .

It is not a de Polignac number, because 134097561 - 2⁵ = 134097529 is a prime.

It is a super-4 number, since 4×134097561⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (134097563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 572950 + ... + 573183.

Almost surely, 2^134097561 is an apocalyptic number.

It is an amenable number.

134097561 is a deficient number, since it is larger than the sum of its proper divisors (74498827).

134097561 is a wasteful number, since it uses less digits than its factorization.

134097561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146152 (or 1146149 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 134097561 is about 11580.0501294252. The cubic root of 134097561 is about 511.8471541338.

The spelling of 134097561 in words is "one hundred thirty-four million, ninety-seven thousand, five hundred sixty-one".