13130551 has 4 divisors (see below), whose sum is σ = 15006352. Its totient is φ = 11254752.

The previous prime is 13130549. The next prime is 13130561. The reversal of 13130551 is 15503131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13130551 - 2¹ = 13130549 is a prime.

It is a super-2 number, since 2×13130551² = 344822739127202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130521) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 937890 + ... + 937903.

It is an arithmetic number, because the mean of its divisors is an integer number (3751588).

Almost surely, 2^13130551 is an apocalyptic number.

13130551 is a deficient number, since it is larger than the sum of its proper divisors (1875801).

13130551 is an equidigital number, since it uses as much as digits as its factorization.

13130551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875800.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 13130551 is about 3623.6102163450. The cubic root of 13130551 is about 235.9179488295.

Adding to 13130551 its reverse (15503131), we get a palindrome (28633682).

The spelling of 13130551 in words is "thirteen million, one hundred thirty thousand, five hundred fifty-one".