13563132 has 36 divisors (see below), whose sum is σ = 34789608. Its totient is φ = 4109600.

The previous prime is 13563107. The next prime is 13563149. The reversal of 13563132 is 23136531.

It is a happy number.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3219 + ... + 6122.

It is an arithmetic number, because the mean of its divisors is an integer number (966378).

Almost surely, 2^13563132 is an apocalyptic number.

13563132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13563132 is an abundant number, since it is smaller than the sum of its proper divisors (21226476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13563132 is a wasteful number, since it uses less digits than its factorization.

13563132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9370 (or 9357 counting only the distinct ones).

The product of its digits is 1620, while the sum is 24.

The square root of 13563132 is about 3682.8157705756. The cubic root of 13563132 is about 238.4807503505.

Adding to 13563132 its reverse (23136531), we get a palindrome (36699663).

It can be divided in two parts, 13563 and 132, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 13563132 in words is "thirteen million, five hundred sixty-three thousand, one hundred thirty-two".