13853187 has 28 divisors (see below), whose sum is σ = 21475264. Its totient is φ = 8922960.

The previous prime is 13853179. The next prime is 13853201. The reversal of 13853187 is 78135831.

It is not a de Polignac number, because 13853187 - 2³ = 13853179 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13853167) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 22293 + ... + 22905.

Almost surely, 2^13853187 is an apocalyptic number.

13853187 is a deficient number, since it is larger than the sum of its proper divisors (7622077).

13853187 is an frugal number, since it uses more digits than its factorization.

13853187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 647 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 13853187 is about 3721.9869693485. The cubic root of 13853187 is about 240.1687875171.

The spelling of 13853187 in words is "thirteen million, eight hundred fifty-three thousand, one hundred eighty-seven".