16987141 has 4 divisors (see below), whose sum is σ = 17014284. Its totient is φ = 16960000.

The previous prime is 16987129. The next prime is 16987153. The reversal of 16987141 is 14178961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14178961 = 1013 ⋅13997.

It is an interprime number because it is at equal distance from previous prime (16987129) and next prime (16987153).

It can be written as a sum of positive squares in 2 ways, for example, as 11082241 + 5904900 = 3329^2 + 2430^2 .

It is a cyclic number.

It is not a de Polignac number, because 16987141 - 2¹¹ = 16985093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16987141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16987111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12610 + ... + 13891.

It is an arithmetic number, because the mean of its divisors is an integer number (4253571).

Almost surely, 2^16987141 is an apocalyptic number.

It is an amenable number.

16987141 is a deficient number, since it is larger than the sum of its proper divisors (27143).

16987141 is an equidigital number, since it uses as much as digits as its factorization.

16987141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27142.

The product of its digits is 12096, while the sum is 37.

The square root of 16987141 is about 4121.5459478210. The cubic root of 16987141 is about 257.0633111243.

The spelling of 16987141 in words is "sixteen million, nine hundred eighty-seven thousand, one hundred forty-one".