205010143 has 16 divisors (see below), whose sum is σ = 224532000. Its totient is φ = 186053760.

The previous prime is 205010101. The next prime is 205010147. The reversal of 205010143 is 341010502.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205010143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205010147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210648 + ... + 211618.

It is an arithmetic number, because the mean of its divisors is an integer number (14033250).

Almost surely, 2^205010143 is an apocalyptic number.

205010143 is a deficient number, since it is larger than the sum of its proper divisors (19521857).

205010143 is a wasteful number, since it uses less digits than its factorization.

205010143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 205010143 is about 14318.1752678196. The cubic root of 205010143 is about 589.6465785303.

Adding to 205010143 its reverse (341010502), we get a palindrome (546020645).

The spelling of 205010143 in words is "two hundred five million, ten thousand, one hundred forty-three".