13031125 has 16 divisors (see below), whose sum is σ = 16539120. Its totient is φ = 10248000.

The previous prime is 13031101. The next prime is 13031159. The reversal of 13031125 is 52113031.

It can be written as a sum of positive squares in 8 ways, for example, as 10093329 + 2937796 = 3177^2 + 1714^2 .

It is not a de Polignac number, because 13031125 - 2¹¹ = 13029077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13031099 and 13031108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6771 + ... + 8479.

It is an arithmetic number, because the mean of its divisors is an integer number (1033695).

Almost surely, 2^13031125 is an apocalyptic number.

It is an amenable number.

13031125 is a deficient number, since it is larger than the sum of its proper divisors (3507995).

13031125 is an equidigital number, since it uses as much as digits as its factorization.

13031125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 13031125 is about 3609.8649559229. The cubic root of 13031125 is about 235.3209738034.

Adding to 13031125 its reverse (52113031), we get a palindrome (65144156).

The spelling of 13031125 in words is "thirteen million, thirty-one thousand, one hundred twenty-five".