331051225 has 6 divisors (see below), whose sum is σ = 410503550. Its totient is φ = 264840960.

The previous prime is 331051223. The next prime is 331051229. The reversal of 331051225 is 522150133.

It can be written as a sum of positive squares in 3 ways, for example, as 99920016 + 231131209 = 9996^2 + 15203^2 .

It is not a de Polignac number, because 331051225 - 2¹ = 331051223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331051196 and 331051205.

It is not an unprimeable number, because it can be changed into a prime (331051223) 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 5 ways as a sum of consecutive naturals, for example, 6621000 + ... + 6621049.

Almost surely, 2^331051225 is an apocalyptic number.

It is an amenable number.

331051225 is a deficient number, since it is larger than the sum of its proper divisors (79452325).

331051225 is a wasteful number, since it uses less digits than its factorization.

331051225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13242059 (or 13242054 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 331051225 is about 18194.8131345172. The cubic root of 331051225 is about 691.7753239725.

The spelling of 331051225 in words is "three hundred thirty-one million, fifty-one thousand, two hundred twenty-five".