201201543 has 8 divisors (see below), whose sum is σ = 298076400. Its totient is φ = 134134344.

The previous prime is 201201529. The next prime is 201201547. The reversal of 201201543 is 345102102.

201201543 is a `hidden beast` number, since 2 + 0 + 120 + 1 + 543 = 666.

It is not a de Polignac number, because 201201543 - 2⁶ = 201201479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201547) 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, 3725928 + ... + 3725981.

It is an arithmetic number, because the mean of its divisors is an integer number (37259550).

Almost surely, 2^201201543 is an apocalyptic number.

201201543 is a deficient number, since it is larger than the sum of its proper divisors (96874857).

201201543 is an equidigital number, since it uses as much as digits as its factorization.

201201543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7451918 (or 7451912 counting only the distinct ones).

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

The square root of 201201543 is about 14184.5529714545. The cubic root of 201201543 is about 585.9723212202.

Adding to 201201543 its reverse (345102102), we get a palindrome (546303645).

The spelling of 201201543 in words is "two hundred one million, two hundred one thousand, five hundred forty-three".