134434442161 has 2 divisors, whose sum is σ = 134434442162. Its totient is φ = 134434442160.

The previous prime is 134434442159. The next prime is 134434442231. The reversal of 134434442161 is 161244434431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104199840000 + 30234602161 = 322800^2 + 173881^2 .

It is a cyclic number.

It is not a de Polignac number, because 134434442161 - 2¹ = 134434442159 is a prime.

Together with 134434442159, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 134434442161.

It is not a weakly prime, because it can be changed into another prime (134434443161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67217221080 + 67217221081.

It is an arithmetic number, because the mean of its divisors is an integer number (67217221081).

Almost surely, 2^134434442161 is an apocalyptic number.

It is an amenable number.

134434442161 is a deficient number, since it is larger than the sum of its proper divisors (1).

134434442161 is an equidigital number, since it uses as much as digits as its factorization.

134434442161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 37.

Adding to 134434442161 its reverse (161244434431), we get a palindrome (295678876592).

The spelling of 134434442161 in words is "one hundred thirty-four billion, four hundred thirty-four million, four hundred forty-two thousand, one hundred sixty-one".