331444361 has 2 divisors, whose sum is σ = 331444362. Its totient is φ = 331444360.

The previous prime is 331444357. The next prime is 331444367. The reversal of 331444361 is 163444133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324684361 + 6760000 = 18019^2 + 2600^2 .

It is a cyclic number.

It is not a de Polignac number, because 331444361 - 2² = 331444357 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331444367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165722180 + 165722181.

It is an arithmetic number, because the mean of its divisors is an integer number (165722181).

Almost surely, 2^331444361 is an apocalyptic number.

It is an amenable number.

331444361 is a deficient number, since it is larger than the sum of its proper divisors (1).

331444361 is an equidigital number, since it uses as much as digits as its factorization.

331444361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

The square root of 331444361 is about 18205.6134475057. The cubic root of 331444361 is about 692.0490522046.

Adding to 331444361 its reverse (163444133), we get a palindrome (494888494).

The spelling of 331444361 in words is "three hundred thirty-one million, four hundred forty-four thousand, three hundred sixty-one".