331334401 has 2 divisors, whose sum is σ = 331334402. Its totient is φ = 331334400.

The previous prime is 331334357. The next prime is 331334413. The reversal of 331334401 is 104433133.

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., 290361600 + 40972801 = 17040^2 + 6401^2 .

It is a cyclic number.

It is not a de Polignac number, because 331334401 - 2⁹ = 331333889 is a prime.

It is not a weakly prime, because it can be changed into another prime (331334431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165667200 + 165667201.

It is an arithmetic number, because the mean of its divisors is an integer number (165667201).

Almost surely, 2^331334401 is an apocalyptic number.

It is an amenable number.

331334401 is a deficient number, since it is larger than the sum of its proper divisors (1).

331334401 is an equidigital number, since it uses as much as digits as its factorization.

331334401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 331334401 is about 18202.5932493148. The cubic root of 331334401 is about 691.9725123288.

Adding to 331334401 its reverse (104433133), we get a palindrome (435767534).

The spelling of 331334401 in words is "three hundred thirty-one million, three hundred thirty-four thousand, four hundred one".