13858166 has 8 divisors (see below), whose sum is σ = 23756880. Its totient is φ = 5939208.

The previous prime is 13858157. The next prime is 13858177. The reversal of 13858166 is 66185831.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494921 + ... + 494948.

It is an arithmetic number, because the mean of its divisors is an integer number (2969610).

Almost surely, 2^13858166 is an apocalyptic number.

13858166 is a deficient number, since it is larger than the sum of its proper divisors (9898714).

13858166 is an equidigital number, since it uses as much as digits as its factorization.

13858166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989878.

The product of its digits is 34560, while the sum is 38.

The square root of 13858166 is about 3722.6557724291. The cubic root of 13858166 is about 240.1975572425.

The spelling of 13858166 in words is "thirteen million, eight hundred fifty-eight thousand, one hundred sixty-six".