13412581 has 8 divisors (see below), whose sum is σ = 16507904. Its totient is φ = 10612080.

The previous prime is 13412579. The next prime is 13412629. The reversal of 13412581 is 18521431.

13412581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13412581 - 2¹ = 13412579 is a prime.

It is a super-2 number, since 2×13412581² = 359794658163122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13412501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73605 + ... + 73786.

It is an arithmetic number, because the mean of its divisors is an integer number (2063488).

Almost surely, 2^13412581 is an apocalyptic number.

It is an amenable number.

13412581 is a deficient number, since it is larger than the sum of its proper divisors (3095323).

13412581 is a wasteful number, since it uses less digits than its factorization.

13412581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147411.

The product of its digits is 960, while the sum is 25.

The square root of 13412581 is about 3662.3190740295. The cubic root of 13412581 is about 237.5950851032.

The spelling of 13412581 in words is "thirteen million, four hundred twelve thousand, five hundred eighty-one".