543423101 has 4 divisors (see below), whose sum is σ = 585224892. Its totient is φ = 501621312.

The previous prime is 543423073. The next prime is 543423103. The reversal of 543423101 is 101324345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 329386201 + 214036900 = 18149^2 + 14630^2 .

It is a cyclic number.

It is not a de Polignac number, because 543423101 - 2¹⁸ = 543160957 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 (543423103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20900876 + ... + 20900901.

It is an arithmetic number, because the mean of its divisors is an integer number (146306223).

Almost surely, 2^543423101 is an apocalyptic number.

It is an amenable number.

543423101 is a deficient number, since it is larger than the sum of its proper divisors (41801791).

543423101 is a wasteful number, since it uses less digits than its factorization.

543423101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41801790.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 543423101 is about 23311.4371285856. The cubic root of 543423101 is about 816.0423518043.

Adding to 543423101 its reverse (101324345), we get a palindrome (644747446).

The spelling of 543423101 in words is "five hundred forty-three million, four hundred twenty-three thousand, one hundred one".