331452225 has 72 divisors (see below), whose sum is σ = 653208192. Its totient is φ = 159638400.

The previous prime is 331452221. The next prime is 331452227. The reversal of 331452225 is 522254133.

It is a happy number.

It is not a de Polignac number, because 331452225 - 2² = 331452221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331452221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 136270 + ... + 138680.

It is an arithmetic number, because the mean of its divisors is an integer number (9072336).

Almost surely, 2^331452225 is an apocalyptic number.

It is an amenable number.

331452225 is a deficient number, since it is larger than the sum of its proper divisors (321755967).

331452225 is a wasteful number, since it uses less digits than its factorization.

331452225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487 (or 2479 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 331452225 is about 18205.8294235665. The cubic root of 331452225 is about 692.0545254518.

The spelling of 331452225 in words is "three hundred thirty-one million, four hundred fifty-two thousand, two hundred twenty-five".