3131325 has 24 divisors (see below), whose sum is σ = 5753600. Its totient is φ = 1669680.

The previous prime is 3131321. The next prime is 3131327. The reversal of 3131325 is 5231313.

It is not a de Polignac number, because 3131325 - 2² = 3131321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3131298 and 3131307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1645 + ... + 2994.

Almost surely, 2^3131325 is an apocalyptic number.

It is an amenable number.

3131325 is a deficient number, since it is larger than the sum of its proper divisors (2622275).

3131325 is a wasteful number, since it uses less digits than its factorization.

3131325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658 (or 4647 counting only the distinct ones).

The product of its digits is 270, while the sum is 18.

The square root of 3131325 is about 1769.5550288137. Note that the first 3 decimals coincide. The cubic root of 3131325 is about 146.2994573034.

Adding to 3131325 its reverse (5231313), we get a palindrome (8362638).

It can be divided in two parts, 3 and 131325, that added together give a triangular number (131328 = T₅₁₂).

The spelling of 3131325 in words is "three million, one hundred thirty-one thousand, three hundred twenty-five".