13531636 has 12 divisors (see below), whose sum is σ = 24710112. Its totient is φ = 6471608.

The previous prime is 13531633. The next prime is 13531663. The reversal of 13531636 is 63613531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73450 + ... + 73633.

It is an arithmetic number, because the mean of its divisors is an integer number (2059176).

Almost surely, 2^13531636 is an apocalyptic number.

It is an amenable number.

13531636 is a deficient number, since it is larger than the sum of its proper divisors (11178476).

13531636 is a wasteful number, since it uses less digits than its factorization.

13531636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147110 (or 147108 counting only the distinct ones).

The product of its digits is 4860, while the sum is 28.

The square root of 13531636 is about 3678.5372092722. The cubic root of 13531636 is about 238.2960090648.

The spelling of 13531636 in words is "thirteen million, five hundred thirty-one thousand, six hundred thirty-six".