201143234 has 32 divisors (see below), whose sum is σ = 332830080. Its totient is φ = 90744192.

The previous prime is 201143233. The next prime is 201143311. The reversal of 201143234 is 432341102.

It is not an unprimeable number, because it can be changed into a prime (201143231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325694 + ... + 326310.

It is an arithmetic number, because the mean of its divisors is an integer number (10400940).

Almost surely, 2^201143234 is an apocalyptic number.

201143234 is a deficient number, since it is larger than the sum of its proper divisors (131686846).

201143234 is a wasteful number, since it uses less digits than its factorization.

201143234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 201143234 is about 14182.4974528466. The cubic root of 201143234 is about 585.9157100552.

Adding to 201143234 its reverse (432341102), we get a palindrome (633484336).

The spelling of 201143234 in words is "two hundred one million, one hundred forty-three thousand, two hundred thirty-four".