201345143 has 2 divisors, whose sum is σ = 201345144. Its totient is φ = 201345142.

The previous prime is 201345119. The next prime is 201345181. The reversal of 201345143 is 341543102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201345143 - 2¹⁰ = 201344119 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201345103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100672571 + 100672572.

It is an arithmetic number, because the mean of its divisors is an integer number (100672572).

Almost surely, 2^201345143 is an apocalyptic number.

201345143 is a deficient number, since it is larger than the sum of its proper divisors (1).

201345143 is an equidigital number, since it uses as much as digits as its factorization.

201345143 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 201345143 is about 14189.6139129999. The cubic root of 201345143 is about 586.1116932704. Note that the first 3 decimals are identical.

Adding to 201345143 its reverse (341543102), we get a palindrome (542888245).

The spelling of 201345143 in words is "two hundred one million, three hundred forty-five thousand, one hundred forty-three".