13130506 has 8 divisors (see below), whose sum is σ = 19718244. Its totient is φ = 6557760.

The previous prime is 13130503. The next prime is 13130519. The reversal of 13130506 is 60503131.

It can be written as a sum of positive squares in 2 ways, for example, as 13024881 + 105625 = 3609^2 + 325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1215 + ... + 5266.

Almost surely, 2^13130506 is an apocalyptic number.

13130506 is a deficient number, since it is larger than the sum of its proper divisors (6587738).

13130506 is a wasteful number, since it uses less digits than its factorization.

13130506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 13130506 is about 3623.6040070626. The cubic root of 13130506 is about 235.9176793226.

Adding to 13130506 its reverse (60503131), we get a palindrome (73633637).

The spelling of 13130506 in words is "thirteen million, one hundred thirty thousand, five hundred six".