202134443 has 16 divisors (see below), whose sum is σ = 238022400. Its totient is φ = 168055776.

The previous prime is 202134409. The next prime is 202134473. The reversal of 202134443 is 344431202.

It is a de Polignac number, because none of the positive numbers 2^k-202134443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202134473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42596 + ... + 47102.

It is an arithmetic number, because the mean of its divisors is an integer number (14876400).

Almost surely, 2^202134443 is an apocalyptic number.

202134443 is a deficient number, since it is larger than the sum of its proper divisors (35887957).

202134443 is a wasteful number, since it uses less digits than its factorization.

202134443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 202134443 is about 14217.3993050769. The cubic root of 202134443 is about 586.8765735113.

Adding to 202134443 its reverse (344431202), we get a palindrome (546565645).

The spelling of 202134443 in words is "two hundred two million, one hundred thirty-four thousand, four hundred forty-three".