201008543 has 4 divisors (see below), whose sum is σ = 211587960. Its totient is φ = 190429128.

The previous prime is 201008539. The next prime is 201008567. The reversal of 201008543 is 345800102.

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 201008543 - 2² = 201008539 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 (201008443) 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, 5289680 + ... + 5289717.

It is an arithmetic number, because the mean of its divisors is an integer number (52896990).

Almost surely, 2^201008543 is an apocalyptic number.

201008543 is a deficient number, since it is larger than the sum of its proper divisors (10579417).

201008543 is a wasteful number, since it uses less digits than its factorization.

201008543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10579416.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 201008543 is about 14177.7481639363. The cubic root of 201008543 is about 585.7848991350.

Adding to 201008543 its reverse (345800102), we get a palindrome (546808645).

The spelling of 201008543 in words is "two hundred one million, eight thousand, five hundred forty-three".