13530851 has 4 divisors (see below), whose sum is σ = 13732872. Its totient is φ = 13328832.

The previous prime is 13530833. The next prime is 13530857. The reversal of 13530851 is 15803531.

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

It is a cyclic number.

It is not a de Polignac number, because 13530851 - 2¹⁴ = 13514467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13530851.

It is not an unprimeable number, because it can be changed into a prime (13530857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100910 + ... + 101043.

It is an arithmetic number, because the mean of its divisors is an integer number (3433218).

Almost surely, 2^13530851 is an apocalyptic number.

13530851 is a deficient number, since it is larger than the sum of its proper divisors (202021).

13530851 is an equidigital number, since it uses as much as digits as its factorization.

13530851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202020.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 13530851 is about 3678.4305077030. The cubic root of 13530851 is about 238.2914009503.

The spelling of 13530851 in words is "thirteen million, five hundred thirty thousand, eight hundred fifty-one".