13530211 has 8 divisors (see below), whose sum is σ = 14262480. Its totient is φ = 12815712.

The previous prime is 13530203. The next prime is 13530259. The reversal of 13530211 is 11203531.

13530211 = 669² + 670² + ... + 697².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13530211 - 2³ = 13530203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13530311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865 + ... + 5938.

It is an arithmetic number, because the mean of its divisors is an integer number (1782810).

Almost surely, 2^13530211 is an apocalyptic number.

13530211 is a deficient number, since it is larger than the sum of its proper divisors (732269).

13530211 is an equidigital number, since it uses as much as digits as its factorization.

13530211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8885.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 13530211 is about 3678.3435130504. The cubic root of 13530211 is about 238.2876438843.

Adding to 13530211 its reverse (11203531), we get a palindrome (24733742).

The spelling of 13530211 in words is "thirteen million, five hundred thirty thousand, two hundred eleven".