13530206 has 4 divisors (see below), whose sum is σ = 20295312. Its totient is φ = 6765102.

The previous prime is 13530203. The next prime is 13530259. The reversal of 13530206 is 60203531.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382550 + ... + 3382553.

It is an arithmetic number, because the mean of its divisors is an integer number (5073828).

Almost surely, 2^13530206 is an apocalyptic number.

13530206 is a deficient number, since it is larger than the sum of its proper divisors (6765106).

13530206 is an equidigital number, since it uses as much as digits as its factorization.

13530206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765105.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 13530206 is about 3678.3428333966. The cubic root of 13530206 is about 238.2876145318.

Adding to 13530206 its reverse (60203531), we get a palindrome (73733737).

The spelling of 13530206 in words is "thirteen million, five hundred thirty thousand, two hundred six".