13531655 has 16 divisors (see below), whose sum is σ = 17025024. Its totient is φ = 10311840.

The previous prime is 13531633. The next prime is 13531663. The reversal of 13531655 is 55613531.

It is not a de Polignac number, because 13531655 - 2¹⁸ = 13269511 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9734 + ... + 11036.

It is an arithmetic number, because the mean of its divisors is an integer number (1064064).

Almost surely, 2^13531655 is an apocalyptic number.

13531655 is a deficient number, since it is larger than the sum of its proper divisors (3493369).

13531655 is a wasteful number, since it uses less digits than its factorization.

13531655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406.

The product of its digits is 6750, while the sum is 29.

The square root of 13531655 is about 3678.5397918196. The cubic root of 13531655 is about 238.2961205966.

The spelling of 13531655 in words is "thirteen million, five hundred thirty-one thousand, six hundred fifty-five".