31080325 has 12 divisors (see below), whose sum is σ = 38644228. Its totient is φ = 24796800.

The previous prime is 31080323. The next prime is 31080331. The reversal of 31080325 is 52308013.

It can be written as a sum of positive squares in 6 ways, for example, as 3265249 + 27815076 = 1807^2 + 5274^2 .

It is not a de Polignac number, because 31080325 - 2¹ = 31080323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31080296 and 31080305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31080323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9049 + ... + 12001.

Almost surely, 2^31080325 is an apocalyptic number.

It is an amenable number.

31080325 is a deficient number, since it is larger than the sum of its proper divisors (7563903).

31080325 is a wasteful number, since it uses less digits than its factorization.

31080325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 31080325 is about 5574.9730941055. The cubic root of 31080325 is about 314.4091553177.

Adding to 31080325 its reverse (52308013), we get a palindrome (83388338).

The spelling of 31080325 in words is "thirty-one million, eighty thousand, three hundred twenty-five".