13130500 has 24 divisors (see below), whose sum is σ = 28678104. Its totient is φ = 5252000.

The previous prime is 13130489. The next prime is 13130503. The reversal of 13130500 is 503131.

It can be written as a sum of positive squares in 4 ways, for example, as 3779136 + 9351364 = 1944^2 + 3058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12631 + ... + 13630.

It is an arithmetic number, because the mean of its divisors is an integer number (1194921).

Almost surely, 2^13130500 is an apocalyptic number.

13130500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13130500 is an abundant number, since it is smaller than the sum of its proper divisors (15547604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13130500 is a wasteful number, since it uses less digits than its factorization.

13130500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26280 (or 26268 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 13130500 is about 3623.6031791575. The cubic root of 13130500 is about 235.9176433883.

Adding to 13130500 its reverse (503131), we get a palindrome (13633631).

The spelling of 13130500 in words is "thirteen million, one hundred thirty thousand, five hundred".