13130756 has 6 divisors (see below), whose sum is σ = 22978830. Its totient is φ = 6565376.

The previous prime is 13130743. The next prime is 13130759. The reversal of 13130756 is 65703131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10137856 + 2992900 = 3184^2 + 1730^2 .

It is not an unprimeable number, because it can be changed into a prime (13130759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1641341 + ... + 1641348.

It is an arithmetic number, because the mean of its divisors is an integer number (3829805).

Almost surely, 2^13130756 is an apocalyptic number.

It is an amenable number.

13130756 is a deficient number, since it is larger than the sum of its proper divisors (9848074).

13130756 is a wasteful number, since it uses less digits than its factorization.

13130756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282693 (or 3282691 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 13130756 is about 3623.6385029415. The cubic root of 13130756 is about 235.9191765750.

Adding to 13130756 its reverse (65703131), we get a palindrome (78833887).

The spelling of 13130756 in words is "thirteen million, one hundred thirty thousand, seven hundred fifty-six".