331003225 has 12 divisors (see below), whose sum is σ = 469079104. Its totient is φ = 226973520.

The previous prime is 331003223. The next prime is 331003229. The reversal of 331003225 is 522300133.

It is not a de Polignac number, because 331003225 - 2¹ = 331003223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331003223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 945549 + ... + 945898.

Almost surely, 2^331003225 is an apocalyptic number.

331003225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

331003225 is a deficient number, since it is larger than the sum of its proper divisors (138075879).

331003225 is a wasteful number, since it uses less digits than its factorization.

331003225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891464 (or 1891459 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 331003225 is about 18193.4940294601. The cubic root of 331003225 is about 691.7418882401.

Adding to 331003225 its reverse (522300133), we get a palindrome (853303358).

The spelling of 331003225 in words is "three hundred thirty-one million, three thousand, two hundred twenty-five".