320134349 has 2 divisors, whose sum is σ = 320134350. Its totient is φ = 320134348.

The previous prime is 320134333. The next prime is 320134351. The reversal of 320134349 is 943431023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319336900 + 797449 = 17870^2 + 893^2 .

It is an emirp because it is prime and its reverse (943431023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320134349 - 2⁴ = 320134333 is a prime.

Together with 320134351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320134319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160067174 + 160067175.

It is an arithmetic number, because the mean of its divisors is an integer number (160067175).

Almost surely, 2^320134349 is an apocalyptic number.

It is an amenable number.

320134349 is a deficient number, since it is larger than the sum of its proper divisors (1).

320134349 is an equidigital number, since it uses as much as digits as its factorization.

320134349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 320134349 is about 17892.2985946468. The cubic root of 320134349 is about 684.0860875938.

The spelling of 320134349 in words is "three hundred twenty million, one hundred thirty-four thousand, three hundred forty-nine".