202243143 has 4 divisors (see below), whose sum is σ = 269657528. Its totient is φ = 134828760.

The previous prime is 202243133. The next prime is 202243159. The reversal of 202243143 is 341342202.

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

It is not a de Polignac number, because 202243143 - 2⁴ = 202243127 is a prime.

It is a super-3 number, since 3×202243143³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202243133) 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, 33707188 + ... + 33707193.

It is an arithmetic number, because the mean of its divisors is an integer number (67414382).

Almost surely, 2^202243143 is an apocalyptic number.

202243143 is a deficient number, since it is larger than the sum of its proper divisors (67414385).

202243143 is an equidigital number, since it uses as much as digits as its factorization.

202243143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67414384.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 202243143 is about 14221.2215720029. The cubic root of 202243143 is about 586.9817544176.

Adding to 202243143 its reverse (341342202), we get a palindrome (543585345).

The spelling of 202243143 in words is "two hundred two million, two hundred forty-three thousand, one hundred forty-three".