202144223 has 4 divisors (see below), whose sum is σ = 202229280. Its totient is φ = 202059168.

The previous prime is 202144213. The next prime is 202144237. The reversal of 202144223 is 322441202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322441202 = 2 ⋅161220601.

It is a cyclic number.

It is not a de Polignac number, because 202144223 - 2¹⁰ = 202143199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202144195 and 202144204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202144213) 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, 38858 + ... + 43751.

It is an arithmetic number, because the mean of its divisors is an integer number (50557320).

Almost surely, 2^202144223 is an apocalyptic number.

202144223 is a deficient number, since it is larger than the sum of its proper divisors (85057).

202144223 is an equidigital number, since it uses as much as digits as its factorization.

202144223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85056.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 202144223 is about 14217.7432456772. The cubic root of 202144223 is about 586.8860384335.

Adding to 202144223 its reverse (322441202), we get a palindrome (524585425).

The spelling of 202144223 in words is "two hundred two million, one hundred forty-four thousand, two hundred twenty-three".