331725 has 12 divisors (see below), whose sum is σ = 548576. Its totient is φ = 176880.

The previous prime is 331711. The next prime is 331739. The reversal of 331725 is 527133.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (331711) and next prime (331739).

It is not a de Polignac number, because 331725 - 2⁵ = 331693 is a prime.

It is a super-2 number, since 2×331725² = 220082951250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

331725 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 331725.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2137 + ... + 2286.

2³³¹⁷²⁵ is an apocalyptic number.

It is an amenable number.

331725 is a deficient number, since it is larger than the sum of its proper divisors (216851).

331725 is a wasteful number, since it uses less digits than its factorization.

331725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436 (or 4431 counting only the distinct ones).

The product of its digits is 630, while the sum is 21.

The square root of 331725 is about 575.9557274652. The cubic root of 331725 is about 69.2244319935.

Adding to 331725 its reverse (527133), we get a palindrome (858858).

The spelling of 331725 in words is "three hundred thirty-one thousand, seven hundred twenty-five".