13875018 has 16 divisors (see below), whose sum is σ = 27832896. Its totient is φ = 4611200.

The previous prime is 13874983. The next prime is 13875023. The reversal of 13875018 is 81057831.

It is a super-2 number, since 2×13875018² = 385032249000648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13875018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158 + ... + 5393.

It is an arithmetic number, because the mean of its divisors is an integer number (1739556).

Almost surely, 2^13875018 is an apocalyptic number.

13875018 is an abundant number, since it is smaller than the sum of its proper divisors (13957878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13875018 is a wasteful number, since it uses less digits than its factorization.

13875018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6909.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 13875018 is about 3724.9185225989. The cubic root of 13875018 is about 240.2948805965.

The spelling of 13875018 in words is "thirteen million, eight hundred seventy-five thousand, eighteen".