13872185 has 8 divisors (see below), whose sum is σ = 17522880. Its totient is φ = 10513584.

The previous prime is 13872181. The next prime is 13872211. The reversal of 13872185 is 58127831.

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 13872185 - 2² = 13872181 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13872181) 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, 72917 + ... + 73106.

It is an arithmetic number, because the mean of its divisors is an integer number (2190360).

Almost surely, 2^13872185 is an apocalyptic number.

It is an amenable number.

13872185 is a deficient number, since it is larger than the sum of its proper divisors (3650695).

13872185 is a wasteful number, since it uses less digits than its factorization.

13872185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146047.

The product of its digits is 13440, while the sum is 35.

The square root of 13872185 is about 3724.5382264114. The cubic root of 13872185 is about 240.2785250205.

The spelling of 13872185 in words is "thirteen million, eight hundred seventy-two thousand, one hundred eighty-five".