543663121 has 8 divisors (see below), whose sum is σ = 567552960. Its totient is φ = 519794352.

The previous prime is 543663083. The next prime is 543663137. The reversal of 543663121 is 121366345.

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 543663121 - 2¹³ = 543654929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543663221) 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 7 ways as a sum of consecutive naturals, for example, 71331 + ... + 78583.

It is an arithmetic number, because the mean of its divisors is an integer number (70944120).

Almost surely, 2^543663121 is an apocalyptic number.

It is an amenable number.

543663121 is a deficient number, since it is larger than the sum of its proper divisors (23889839).

543663121 is a wasteful number, since it uses less digits than its factorization.

543663121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10535.

The product of its digits is 12960, while the sum is 31.

The square root of 543663121 is about 23316.5846770062. The cubic root of 543663121 is about 816.1624777584.

The spelling of 543663121 in words is "five hundred forty-three million, six hundred sixty-three thousand, one hundred twenty-one".