299143 has 4 divisors (see below), whose sum is σ = 322168. Its totient is φ = 276120.

The previous prime is 299137. The next prime is 299147. The reversal of 299143 is 341992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 299143 - 2⁹ = 298631 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11493 + ... + 11518.

It is an arithmetic number, because the mean of its divisors is an integer number (80542).

2²⁹⁹¹⁴³ is an apocalyptic number.

299143 is a deficient number, since it is larger than the sum of its proper divisors (23025).

299143 is a wasteful number, since it uses less digits than its factorization.

299143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23024.

The product of its digits is 1944, while the sum is 28.

The square root of 299143 is about 546.9396676051. The cubic root of 299143 is about 66.8794893193.

Subtracting 299143 from its reverse (341992), we obtain a square (42849 = 207²).

The spelling of 299143 in words is "two hundred ninety-nine thousand, one hundred forty-three".