13180689 has 12 divisors (see below), whose sum is σ = 19168500. Its totient is φ = 8727264.

The previous prime is 13180681. The next prime is 13180691. The reversal of 13180689 is 98608131.

It can be written as a sum of positive squares in 2 ways, for example, as 6890625 + 6290064 = 2625^2 + 2508^2 .

It is not a de Polignac number, because 13180689 - 2³ = 13180681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13180681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3574 + ... + 6255.

It is an arithmetic number, because the mean of its divisors is an integer number (1597375).

Almost surely, 2^13180689 is an apocalyptic number.

It is an amenable number.

13180689 is a deficient number, since it is larger than the sum of its proper divisors (5987811).

13180689 is a wasteful number, since it uses less digits than its factorization.

13180689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9984 (or 9981 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 13180689 is about 3630.5218633139. The cubic root of 13180689 is about 236.2178456281.

The spelling of 13180689 in words is "thirteen million, one hundred eighty thousand, six hundred eighty-nine".