134144281 has 2 divisors, whose sum is σ = 134144282. Its totient is φ = 134144280.

The previous prime is 134144279. The next prime is 134144287. The reversal of 134144281 is 182441431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96432400 + 37711881 = 9820^2 + 6141^2 .

It is a cyclic number.

It is not a de Polignac number, because 134144281 - 2¹ = 134144279 is a prime.

It is a super-2 number, since 2×134144281² = 35989376250013922, which contains 22 as substring.

Together with 134144279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (134144287) 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 as a sum of consecutive naturals, namely, 67072140 + 67072141.

It is an arithmetic number, because the mean of its divisors is an integer number (67072141).

Almost surely, 2^134144281 is an apocalyptic number.

It is an amenable number.

134144281 is a deficient number, since it is larger than the sum of its proper divisors (1).

134144281 is an equidigital number, since it uses as much as digits as its factorization.

134144281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 28.

The square root of 134144281 is about 11582.0672161752. The cubic root of 134144281 is about 511.9065902693.

The spelling of 134144281 in words is "one hundred thirty-four million, one hundred forty-four thousand, two hundred eighty-one".