209141 has 4 divisors (see below), whose sum is σ = 214284. Its totient is φ = 204000.

The previous prime is 209123. The next prime is 209147. The reversal of 209141 is 141902.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141902 = 2 ⋅70951.

It can be written as a sum of positive squares in 2 ways, for example, as 3025 + 206116 = 55^2 + 454^2 .

It is a cyclic number.

It is not a de Polignac number, because 209141 - 2¹⁴ = 192757 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209147) 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, 2510 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (53571).

2²⁰⁹¹⁴¹ is an apocalyptic number.

It is an amenable number.

209141 is a deficient number, since it is larger than the sum of its proper divisors (5143).

209141 is an equidigital number, since it uses as much as digits as its factorization.

209141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 209141 is about 457.3193632463. The cubic root of 209141 is about 59.3580638677.

The spelling of 209141 in words is "two hundred nine thousand, one hundred forty-one".