298143 has 12 divisors (see below), whose sum is σ = 435448. Its totient is φ = 196560.

The previous prime is 298099. The next prime is 298153. The reversal of 298143 is 341892.

It is not a de Polignac number, because 298143 - 2¹³ = 289951 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 298143.

It is not an unprimeable number, because it can be changed into a prime (298153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1308 + ... + 1518.

2²⁹⁸¹⁴³ is an apocalyptic number.

298143 is a deficient number, since it is larger than the sum of its proper divisors (137305).

298143 is a wasteful number, since it uses less digits than its factorization.

298143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 371 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 298143 is about 546.0247247149. The cubic root of 298143 is about 66.8048826914.

Subtracting from 298143 its sum of digits (27), we obtain a square (298116 = 546²).

It can be divided in two parts, 298 and 143, that added together give a square (441 = 21²).

The spelling of 298143 in words is "two hundred ninety-eight thousand, one hundred forty-three".