201205143 has 12 divisors (see below), whose sum is σ = 291030480. Its totient is φ = 133951776.

The previous prime is 201205139. The next prime is 201205229. The reversal of 201205143 is 341502102.

It is not a de Polignac number, because 201205143 - 2² = 201205139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201205243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8358 + ... + 21731.

It is an arithmetic number, because the mean of its divisors is an integer number (24252540).

Almost surely, 2^201205143 is an apocalyptic number.

201205143 is a deficient number, since it is larger than the sum of its proper divisors (89825337).

201205143 is a wasteful number, since it uses less digits than its factorization.

201205143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30838 (or 30835 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 201205143 is about 14184.6798694930. The cubic root of 201205143 is about 585.9758160373.

Adding to 201205143 its reverse (341502102), we get a palindrome (542707245).

The spelling of 201205143 in words is "two hundred one million, two hundred five thousand, one hundred forty-three".