13488581 has 4 divisors (see below), whose sum is σ = 13529664. Its totient is φ = 13447500.

The previous prime is 13488551. The next prime is 13488589. The reversal of 13488581 is 18588431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13488581 - 2¹⁰ = 13487557 is a prime.

It is a super-2 number, since 2×13488581² = 363883634787122, 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 (13488589) 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, 20045 + ... + 20706.

It is an arithmetic number, because the mean of its divisors is an integer number (3382416).

Almost surely, 2^13488581 is an apocalyptic number.

It is an amenable number.

13488581 is a deficient number, since it is larger than the sum of its proper divisors (41083).

13488581 is an equidigital number, since it uses as much as digits as its factorization.

13488581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41082.

The product of its digits is 30720, while the sum is 38.

The square root of 13488581 is about 3672.6803563610. The cubic root of 13488581 is about 238.0430035515.

The spelling of 13488581 in words is "thirteen million, four hundred eighty-eight thousand, five hundred eighty-one".