204143351 has 2 divisors, whose sum is σ = 204143352. Its totient is φ = 204143350.

The previous prime is 204143311. The next prime is 204143371. The reversal of 204143351 is 153341402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204143351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204143311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102071675 + 102071676.

It is an arithmetic number, because the mean of its divisors is an integer number (102071676).

Almost surely, 2^204143351 is an apocalyptic number.

204143351 is a deficient number, since it is larger than the sum of its proper divisors (1).

204143351 is an equidigital number, since it uses as much as digits as its factorization.

204143351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 204143351 is about 14287.8742645643. The cubic root of 204143351 is about 588.8143872616.

Adding to 204143351 its reverse (153341402), we get a palindrome (357484753).

The spelling of 204143351 in words is "two hundred four million, one hundred forty-three thousand, three hundred fifty-one".