319011361 has 2 divisors, whose sum is σ = 319011362. Its totient is φ = 319011360.

The previous prime is 319011269. The next prime is 319011377. The reversal of 319011361 is 163110913.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311310736 + 7700625 = 17644^2 + 2775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319011361 is a prime.

It is not a weakly prime, because it can be changed into another prime (319011391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159505680 + 159505681.

It is an arithmetic number, because the mean of its divisors is an integer number (159505681).

Almost surely, 2^319011361 is an apocalyptic number.

It is an amenable number.

319011361 is a deficient number, since it is larger than the sum of its proper divisors (1).

319011361 is an equidigital number, since it uses as much as digits as its factorization.

319011361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 319011361 is about 17860.8891436009. The cubic root of 319011361 is about 683.2852566348.

The spelling of 319011361 in words is "three hundred nineteen million, eleven thousand, three hundred sixty-one".