201212543 has 8 divisors (see below), whose sum is σ = 235566240. Its totient is φ = 168261120.

The previous prime is 201212519. The next prime is 201212551. The reversal of 201212543 is 345212102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201212543 - 2¹⁶ = 201147007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212513) 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 7 ways as a sum of consecutive naturals, for example, 350258 + ... + 350831.

It is an arithmetic number, because the mean of its divisors is an integer number (29445780).

Almost surely, 2^201212543 is an apocalyptic number.

201212543 is a deficient number, since it is larger than the sum of its proper divisors (34353697).

201212543 is an equidigital number, since it uses as much as digits as its factorization.

201212543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701137.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201212543 is about 14184.9407118958. The cubic root of 201212543 is about 585.9829996971.

Adding to 201212543 its reverse (345212102), we get a palindrome (546424645).

The spelling of 201212543 in words is "two hundred one million, two hundred twelve thousand, five hundred forty-three".