134235702281 has 4 divisors (see below), whose sum is σ = 134255026500. Its totient is φ = 134216378064.

The previous prime is 134235702257. The next prime is 134235702283. The reversal of 134235702281 is 182207532431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119965249600 + 14270452681 = 346360^2 + 119459^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134235702281 is a prime.

It is a super-3 number, since 3×134235702281³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134235702283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9651686 + ... + 9665583.

It is an arithmetic number, because the mean of its divisors is an integer number (33563756625).

Almost surely, 2^134235702281 is an apocalyptic number.

It is an amenable number.

134235702281 is a deficient number, since it is larger than the sum of its proper divisors (19324219).

134235702281 is an equidigital number, since it uses as much as digits as its factorization.

134235702281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19324218.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 134235702281 in words is "one hundred thirty-four billion, two hundred thirty-five million, seven hundred two thousand, two hundred eighty-one".