134666773 has 2 divisors, whose sum is σ = 134666774. Its totient is φ = 134666772.

The previous prime is 134666761. The next prime is 134666803. The reversal of 134666773 is 377666431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77845329 + 56821444 = 8823^2 + 7538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134666773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134666723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67333386 + 67333387.

It is an arithmetic number, because the mean of its divisors is an integer number (67333387).

Almost surely, 2^134666773 is an apocalyptic number.

It is an amenable number.

134666773 is a deficient number, since it is larger than the sum of its proper divisors (1).

134666773 is an equidigital number, since it uses as much as digits as its factorization.

134666773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 43.

The square root of 134666773 is about 11604.6013718697. The cubic root of 134666773 is about 512.5703546484.

The spelling of 134666773 in words is "one hundred thirty-four million, six hundred sixty-six thousand, seven hundred seventy-three".