13531693 has 8 divisors (see below), whose sum is σ = 15780800. Its totient is φ = 11598300.

The previous prime is 13531669. The next prime is 13531703. The reversal of 13531693 is 39613531.

It is not a de Polignac number, because 13531693 - 2⁹ = 13531181 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 19383 + ... + 20068.

It is an arithmetic number, because the mean of its divisors is an integer number (1972600).

Almost surely, 2^13531693 is an apocalyptic number.

It is an amenable number.

13531693 is a deficient number, since it is larger than the sum of its proper divisors (2249107).

13531693 is an frugal number, since it uses more digits than its factorization.

13531693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39472 (or 39458 counting only the distinct ones).

The product of its digits is 7290, while the sum is 31.

The square root of 13531693 is about 3678.5449569089. The cubic root of 13531693 is about 238.2963436599.

The spelling of 13531693 in words is "thirteen million, five hundred thirty-one thousand, six hundred ninety-three".