319481441 has 2 divisors, whose sum is σ = 319481442. Its totient is φ = 319481440.

The previous prime is 319481417. The next prime is 319481489. The reversal of 319481441 is 144184913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289000000 + 30481441 = 17000^2 + 5521^2 .

It is an emirp because it is prime and its reverse (144184913) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 319481441 - 2¹⁸ = 319219297 is a prime.

It is a super-2 number, since 2×319481441² = 204136782286872962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (319481741) 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, 159740720 + 159740721.

It is an arithmetic number, because the mean of its divisors is an integer number (159740721).

Almost surely, 2^319481441 is an apocalyptic number.

It is an amenable number.

319481441 is a deficient number, since it is larger than the sum of its proper divisors (1).

319481441 is an equidigital number, since it uses as much as digits as its factorization.

319481441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 35.

The square root of 319481441 is about 17874.0437786193. The cubic root of 319481441 is about 683.6207108265.

The spelling of 319481441 in words is "three hundred nineteen million, four hundred eighty-one thousand, four hundred forty-one".