331225 has 6 divisors (see below), whose sum is σ = 410750. Its totient is φ = 264960.

The previous prime is 331217. The next prime is 331231. The reversal of 331225 is 522133.

It can be written as a sum of positive squares in 3 ways, for example, as 5184 + 326041 = 72^2 + 571^2 .

It is not a de Polignac number, because 331225 - 2³ = 331217 is a prime.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 331199 and 331208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6600 + ... + 6649.

2³³¹²²⁵ is an apocalyptic number.

It is an amenable number.

331225 is a deficient number, since it is larger than the sum of its proper divisors (79525).

331225 is a wasteful number, since it uses less digits than its factorization.

331225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13259 (or 13254 counting only the distinct ones).

The product of its digits is 180, while the sum is 16.

The square root of 331225 is about 575.5215026391. The cubic root of 331225 is about 69.1896344749.

Adding to 331225 its reverse (522133), we get a palindrome (853358).

The spelling of 331225 in words is "three hundred thirty-one thousand, two hundred twenty-five".