198741 has 8 divisors (see below), whose sum is σ = 273664. Its totient is φ = 128160.

The previous prime is 198733. The next prime is 198761. The reversal of 198741 is 147891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198741 - 2³ = 198733 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198699 and 198708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198701) 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 7 ways as a sum of consecutive naturals, for example, 976 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (34208).

2¹⁹⁸⁷⁴¹ is an apocalyptic number.

It is an amenable number.

198741 is a deficient number, since it is larger than the sum of its proper divisors (74923).

198741 is a wasteful number, since it uses less digits than its factorization.

198741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171.

The product of its digits is 2016, while the sum is 30.

The square root of 198741 is about 445.8037684901. The cubic root of 198741 is about 58.3573850931.

It can be divided in two parts, 198 and 741, that added together give a palindrome (939).

The spelling of 198741 in words is "one hundred ninety-eight thousand, seven hundred forty-one".