198860141 has 4 divisors (see below), whose sum is σ = 199713852. Its totient is φ = 198006432.

The previous prime is 198860131. The next prime is 198860147. The reversal of 198860141 is 141068891.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25542916 + 173317225 = 5054^2 + 13165^2 .

It is a cyclic number.

It is not a de Polignac number, because 198860141 - 2¹⁰ = 198859117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198860095 and 198860104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198860147) 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, 426506 + ... + 426971.

It is an arithmetic number, because the mean of its divisors is an integer number (49928463).

Almost surely, 2^198860141 is an apocalyptic number.

It is an amenable number.

198860141 is a deficient number, since it is larger than the sum of its proper divisors (853711).

198860141 is an equidigital number, since it uses as much as digits as its factorization.

198860141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853710.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 198860141 is about 14101.7779375510. Note that the first 3 decimals coincide. The cubic root of 198860141 is about 583.6904410040.

The spelling of 198860141 in words is "one hundred ninety-eight million, eight hundred sixty thousand, one hundred forty-one".