331458481 has 2 divisors, whose sum is σ = 331458482. Its totient is φ = 331458480.

The previous prime is 331458433. The next prime is 331458511. The reversal of 331458481 is 184854133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213627456 + 117831025 = 14616^2 + 10855^2 .

It is a cyclic number.

It is not a de Polignac number, because 331458481 - 2⁷ = 331458353 is a prime.

It is a super-2 number, since 2×331458481² = 219729449253654722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331458481.

It is not a weakly prime, because it can be changed into another prime (331458431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165729240 + 165729241.

It is an arithmetic number, because the mean of its divisors is an integer number (165729241).

Almost surely, 2^331458481 is an apocalyptic number.

It is an amenable number.

331458481 is a deficient number, since it is larger than the sum of its proper divisors (1).

331458481 is an equidigital number, since it uses as much as digits as its factorization.

331458481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 331458481 is about 18206.0012358563. The cubic root of 331458481 is about 692.0588794889.

The spelling of 331458481 in words is "three hundred thirty-one million, four hundred fifty-eight thousand, four hundred eighty-one".