234002143 has 4 divisors (see below), whose sum is σ = 238980960. Its totient is φ = 229023328.

The previous prime is 234002113. The next prime is 234002177. The reversal of 234002143 is 341200432.

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

It is a cyclic number.

It is not a de Polignac number, because 234002143 - 2⁹ = 234001631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234002143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234002113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2489338 + ... + 2489431.

It is an arithmetic number, because the mean of its divisors is an integer number (59745240).

Almost surely, 2^234002143 is an apocalyptic number.

234002143 is a deficient number, since it is larger than the sum of its proper divisors (4978817).

234002143 is an equidigital number, since it uses as much as digits as its factorization.

234002143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4978816.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 234002143 is about 15297.1285867642. The cubic root of 234002143 is about 616.2258959202.

Adding to 234002143 its reverse (341200432), we get a palindrome (575202575).

The spelling of 234002143 in words is "two hundred thirty-four million, two thousand, one hundred forty-three".