13031325 has 18 divisors (see below), whose sum is σ = 23340954. Its totient is φ = 6949920.

The previous prime is 13031309. The next prime is 13031329. The reversal of 13031325 is 52313031.

13031325 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1375929 + 11655396 = 1173^2 + 3414^2 .

It is not a de Polignac number, because 13031325 - 2⁴ = 13031309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13031298 and 13031307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031329) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28734 + ... + 29183.

Almost surely, 2^13031325 is an apocalyptic number.

13031325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13031325 is a deficient number, since it is larger than the sum of its proper divisors (10309629).

13031325 is a wasteful number, since it uses less digits than its factorization.

13031325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57933 (or 57925 counting only the distinct ones).

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

The square root of 13031325 is about 3609.8926576839. The cubic root of 13031325 is about 235.3221776891.

Adding to 13031325 its reverse (52313031), we get a palindrome (65344356).

It can be divided in two parts, 1303 and 1325, that added together give a triangular number (2628 = T₇₂).

The spelling of 13031325 in words is "thirteen million, thirty-one thousand, three hundred twenty-five".