320113949 has 2 divisors, whose sum is σ = 320113950. Its totient is φ = 320113948.

The previous prime is 320113921. The next prime is 320113951. The reversal of 320113949 is 949311023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267551449 + 52562500 = 16357^2 + 7250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320113949 is a prime.

Together with 320113951, 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 (320113649) 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 as a sum of consecutive naturals, namely, 160056974 + 160056975.

It is an arithmetic number, because the mean of its divisors is an integer number (160056975).

Almost surely, 2^320113949 is an apocalyptic number.

It is an amenable number.

320113949 is a deficient number, since it is larger than the sum of its proper divisors (1).

320113949 is an equidigital number, since it uses as much as digits as its factorization.

320113949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 320113949 is about 17891.7285078888. The cubic root of 320113949 is about 684.0715565564.

The spelling of 320113949 in words is "three hundred twenty million, one hundred thirteen thousand, nine hundred forty-nine".