201347543 has 16 divisors (see below), whose sum is σ = 216480000. Its totient is φ = 186810624.

The previous prime is 201347533. The next prime is 201347557. The reversal of 201347543 is 345743102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201347543 - 2⁴ = 201347527 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 (201347513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160583 + ... + 161831.

It is an arithmetic number, because the mean of its divisors is an integer number (13530000).

Almost surely, 2^201347543 is an apocalyptic number.

201347543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

201347543 is a deficient number, since it is larger than the sum of its proper divisors (15132457).

201347543 is a wasteful number, since it uses less digits than its factorization.

201347543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 201347543 is about 14189.6984816451. The cubic root of 201347543 is about 586.1140220452.

The spelling of 201347543 in words is "two hundred one million, three hundred forty-seven thousand, five hundred forty-three".