134040261 has 16 divisors (see below), whose sum is σ = 182874240. Its totient is φ = 87306240.

The previous prime is 134040259. The next prime is 134040281. The reversal of 134040261 is 162040431.

It is not a de Polignac number, because 134040261 - 2¹ = 134040259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134040281) 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 15 ways as a sum of consecutive naturals, for example, 21285 + ... + 26853.

It is an arithmetic number, because the mean of its divisors is an integer number (11429640).

Almost surely, 2^134040261 is an apocalyptic number.

It is an amenable number.

134040261 is a deficient number, since it is larger than the sum of its proper divisors (48833979).

134040261 is a wasteful number, since it uses less digits than its factorization.

134040261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 134040261 is about 11577.5757825203. The cubic root of 134040261 is about 511.7742395083.

Adding to 134040261 its reverse (162040431), we get a palindrome (296080692).

The spelling of 134040261 in words is "one hundred thirty-four million, forty thousand, two hundred sixty-one".