201343543 has 8 divisors (see below), whose sum is σ = 210176640. Its totient is φ = 192656640.

The previous prime is 201343537. The next prime is 201343547. The reversal of 201343543 is 345343102.

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 201343543 - 2⁵ = 201343511 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 (201343547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33730 + ... + 39247.

It is an arithmetic number, because the mean of its divisors is an integer number (26272080).

Almost surely, 2^201343543 is an apocalyptic number.

201343543 is a deficient number, since it is larger than the sum of its proper divisors (8833097).

201343543 is an equidigital number, since it uses as much as digits as its factorization.

201343543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73097.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 201343543 is about 14189.5575336231. The cubic root of 201343543 is about 586.1101407436.

Adding to 201343543 its reverse (345343102), we get a palindrome (546686645).

The spelling of 201343543 in words is "two hundred one million, three hundred forty-three thousand, five hundred forty-three".