13130726 has 16 divisors (see below), whose sum is σ = 22970400. Its totient is φ = 5627160.

The previous prime is 13130717. The next prime is 13130743. The reversal of 13130726 is 62703131.

It is a happy number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8885 + ... + 10256.

It is an arithmetic number, because the mean of its divisors is an integer number (1435650).

Almost surely, 2^13130726 is an apocalyptic number.

13130726 is a deficient number, since it is larger than the sum of its proper divisors (9839674).

13130726 is an equidigital number, since it uses as much as digits as its factorization.

13130726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19164 (or 19150 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 13130726 is about 3623.6343634534. The cubic root of 13130726 is about 235.9189969058.

Adding to 13130726 its reverse (62703131), we get a palindrome (75833857).

The spelling of 13130726 in words is "thirteen million, one hundred thirty thousand, seven hundred twenty-six".