13532643 has 8 divisors (see below), whose sum is σ = 20048400. Its totient is φ = 9021744.

The previous prime is 13532633. The next prime is 13532657. The reversal of 13532643 is 34623531.

It is a happy number.

13532643 is a `hidden beast` number, since 13 + 5 + 3 + 2 + 643 = 666.

13532643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13532643 - 2⁹ = 13532131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 501209 = 13532643 / (1 + 3 + 5 + 3 + 2 + 6 + 4 + 3).

It is not an unprimeable number, because it can be changed into a prime (13532633) 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, 250578 + ... + 250631.

It is an arithmetic number, because the mean of its divisors is an integer number (2506050).

Almost surely, 2^13532643 is an apocalyptic number.

13532643 is a deficient number, since it is larger than the sum of its proper divisors (6515757).

13532643 is an equidigital number, since it uses as much as digits as its factorization.

13532643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501218 (or 501212 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 13532643 is about 3678.6740817854. The cubic root of 13532643 is about 238.3019201049.

The spelling of 13532643 in words is "thirteen million, five hundred thirty-two thousand, six hundred forty-three".