133680793 has 2 divisors, whose sum is σ = 133680794. Its totient is φ = 133680792.

The previous prime is 133680791. The next prime is 133680803. The reversal of 133680793 is 397086331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83667609 + 50013184 = 9147^2 + 7072^2 .

It is a cyclic number.

It is not a de Polignac number, because 133680793 - 2¹ = 133680791 is a prime.

Together with 133680791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (133680791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66840396 + 66840397.

It is an arithmetic number, because the mean of its divisors is an integer number (66840397).

Almost surely, 2^133680793 is an apocalyptic number.

It is an amenable number.

133680793 is a deficient number, since it is larger than the sum of its proper divisors (1).

133680793 is an equidigital number, since it uses as much as digits as its factorization.

133680793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 133680793 is about 11562.0410395397. The cubic root of 133680793 is about 511.3163393728.

The spelling of 133680793 in words is "one hundred thirty-three million, six hundred eighty thousand, seven hundred ninety-three".