13632545 has 4 divisors (see below), whose sum is σ = 16359060. Its totient is φ = 10906032.

The previous prime is 13632533. The next prime is 13632559. The reversal of 13632545 is 54523631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54523631 = 233 ⋅234007.

It can be written as a sum of positive squares in 2 ways, for example, as 5053504 + 8579041 = 2248^2 + 2929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13632545 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363250 + ... + 1363259.

It is an arithmetic number, because the mean of its divisors is an integer number (4089765).

Almost surely, 2^13632545 is an apocalyptic number.

It is an amenable number.

13632545 is a deficient number, since it is larger than the sum of its proper divisors (2726515).

13632545 is an equidigital number, since it uses as much as digits as its factorization.

13632545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726514.

The product of its digits is 10800, while the sum is 29.

The square root of 13632545 is about 3692.2276473695. The cubic root of 13632545 is about 238.8868882311.

The spelling of 13632545 in words is "thirteen million, six hundred thirty-two thousand, five hundred forty-five".