202143244 has 6 divisors (see below), whose sum is σ = 353750684. Its totient is φ = 101071620.

The previous prime is 202143241. The next prime is 202143259. The reversal of 202143244 is 442341202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (202143241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25267902 + ... + 25267909.

Almost surely, 2^202143244 is an apocalyptic number.

It is an amenable number.

202143244 is a deficient number, since it is larger than the sum of its proper divisors (151607440).

202143244 is a wasteful number, since it uses less digits than its factorization.

202143244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50535815 (or 50535813 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 202143244 is about 14217.7088168242. The cubic root of 202143244 is about 586.8850909872.

Adding to 202143244 its reverse (442341202), we get a palindrome (644484446).

The spelling of 202143244 in words is "two hundred two million, one hundred forty-three thousand, two hundred forty-four".