134843281 has 8 divisors (see below), whose sum is σ = 138637224. Its totient is φ = 131057280.

The previous prime is 134843279. The next prime is 134843299. The reversal of 134843281 is 182348431.

It can be written as a sum of positive squares in 4 ways, for example, as 42510400 + 92332881 = 6520^2 + 9609^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 134843281 - 2¹ = 134843279 is a prime.

It is a super-2 number, since 2×134843281² = 36365420861689922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134843081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54021 + ... + 56461.

It is an arithmetic number, because the mean of its divisors is an integer number (17329653).

Almost surely, 2^134843281 is an apocalyptic number.

It is an amenable number.

134843281 is a deficient number, since it is larger than the sum of its proper divisors (3793943).

134843281 is a wasteful number, since it uses less digits than its factorization.

134843281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971.

The product of its digits is 18432, while the sum is 34.

The square root of 134843281 is about 11612.2039682396. The cubic root of 134843281 is about 512.7941991977.

The spelling of 134843281 in words is "one hundred thirty-four million, eight hundred forty-three thousand, two hundred eighty-one".