16849143 has 12 divisors (see below), whose sum is σ = 25618840. Its totient is φ = 10641456.

The previous prime is 16849141. The next prime is 16849153. The reversal of 16849143 is 34194861.

16849143 is a `hidden beast` number, since 168 + 491 + 4 + 3 = 666.

It is not a de Polignac number, because 16849143 - 2¹ = 16849141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16849098 and 16849107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16849141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49096 + ... + 49437.

Almost surely, 2^16849143 is an apocalyptic number.

16849143 is a deficient number, since it is larger than the sum of its proper divisors (8769697).

16849143 is a wasteful number, since it uses less digits than its factorization.

16849143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98558 (or 98555 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 16849143 is about 4104.7707609561. The cubic root of 16849143 is about 256.3653180748.

The spelling of 16849143 in words is "sixteen million, eight hundred forty-nine thousand, one hundred forty-three".