13113125 has 10 divisors (see below), whose sum is σ = 16386942. Its totient is φ = 10490000.

The previous prime is 13113119. The next prime is 13113127. The reversal of 13113125 is 52131131.

It can be written as a sum of positive squares in 5 ways, for example, as 5098564 + 8014561 = 2258^2 + 2831^2 .

It is not a de Polignac number, because 13113125 - 2²² = 8918821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9866 + ... + 11115.

Almost surely, 2^13113125 is an apocalyptic number.

It is an amenable number.

13113125 is a deficient number, since it is larger than the sum of its proper divisors (3273817).

13113125 is an frugal number, since it uses more digits than its factorization.

13113125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21001 (or 20986 counting only the distinct ones).

The product of its digits is 90, while the sum is 17.

The square root of 13113125 is about 3621.2049099713. The cubic root of 13113125 is about 235.8135377203.

Adding to 13113125 its reverse (52131131), we get a palindrome (65244256).

The spelling of 13113125 in words is "thirteen million, one hundred thirteen thousand, one hundred twenty-five".