120543663 has 16 divisors (see below), whose sum is σ = 164900736. Its totient is φ = 78284640.

The previous prime is 120543629. The next prime is 120543671. The reversal of 120543663 is 366345021.

It is not a de Polignac number, because 120543663 - 2²¹ = 118446511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120543663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120543613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58456 + ... + 60482.

It is an arithmetic number, because the mean of its divisors is an integer number (10306296).

Almost surely, 2^120543663 is an apocalyptic number.

120543663 is a deficient number, since it is larger than the sum of its proper divisors (44357073).

120543663 is a wasteful number, since it uses less digits than its factorization.

120543663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 120543663 is about 10979.2378150762. The cubic root of 120543663 is about 493.9861751501.

Adding to 120543663 its reverse (366345021), we get a palindrome (486888684).

The spelling of 120543663 in words is "one hundred twenty million, five hundred forty-three thousand, six hundred sixty-three".