13849581 has 8 divisors (see below), whose sum is σ = 18965344. Its totient is φ = 8983440.

The previous prime is 13849579. The next prime is 13849597. The reversal of 13849581 is 18594831.

13849581 is digitally balanced in base 3, 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 not a de Polignac number, because 13849581 - 2¹ = 13849579 is a prime.

It is a super-2 number, since 2×13849581² = 383621787751122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13849531) 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, 62275 + ... + 62496.

It is an arithmetic number, because the mean of its divisors is an integer number (2370668).

Almost surely, 2^13849581 is an apocalyptic number.

It is an amenable number.

13849581 is a deficient number, since it is larger than the sum of its proper divisors (5115763).

13849581 is a wasteful number, since it uses less digits than its factorization.

13849581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124811.

The product of its digits is 34560, while the sum is 39.

The square root of 13849581 is about 3721.5025191447. The cubic root of 13849581 is about 240.1479469744.

The spelling of 13849581 in words is "thirteen million, eight hundred forty-nine thousand, five hundred eighty-one".