13380581 has 8 divisors (see below), whose sum is σ = 14309784. Its totient is φ = 12467200.

The previous prime is 13380529. The next prime is 13380583. The reversal of 13380581 is 18508331.

13380581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11115556 + 2265025 = 3334^2 + 1505^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13380581 - 2⁶ = 13380517 is a prime.

It is a super-2 number, since 2×13380581² = 358079895795122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13380583) 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 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 5613.

It is an arithmetic number, because the mean of its divisors is an integer number (1788723).

Almost surely, 2^13380581 is an apocalyptic number.

It is an amenable number.

13380581 is a deficient number, since it is larger than the sum of its proper divisors (929203).

13380581 is a wasteful number, since it uses less digits than its factorization.

13380581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7911.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 13380581 is about 3657.9476486139. The cubic root of 13380581 is about 237.4059816227.

The spelling of 13380581 in words is "thirteen million, three hundred eighty thousand, five hundred eighty-one".