18867141 has 16 divisors (see below), whose sum is σ = 28070400. Its totient is φ = 12524544.

The previous prime is 18867131. The next prime is 18867143. The reversal of 18867141 is 14176881.

It is not a de Polignac number, because 18867141 - 2¹⁰ = 18866117 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18867096 and 18867105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18867143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5580 + ... + 8298.

It is an arithmetic number, because the mean of its divisors is an integer number (1754400).

Almost surely, 2^18867141 is an apocalyptic number.

It is an amenable number.

18867141 is a deficient number, since it is larger than the sum of its proper divisors (9203259).

18867141 is a wasteful number, since it uses less digits than its factorization.

18867141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985 (or 2979 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 18867141 is about 4343.6322358137. The cubic root of 18867141 is about 266.2167425232.

The spelling of 18867141 in words is "eighteen million, eight hundred sixty-seven thousand, one hundred forty-one".