120543549 has 48 divisors (see below), whose sum is σ = 199882368. Its totient is φ = 63074304.

The previous prime is 120543547. The next prime is 120543551. The reversal of 120543549 is 945345021.

It is an interprime number because it is at equal distance from previous prime (120543547) and next prime (120543551).

It is not a de Polignac number, because 120543549 - 2¹ = 120543547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120543547) 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 47 ways as a sum of consecutive naturals, for example, 1242669 + ... + 1242765.

It is an arithmetic number, because the mean of its divisors is an integer number (4164216).

Almost surely, 2^120543549 is an apocalyptic number.

It is an amenable number.

120543549 is a deficient number, since it is larger than the sum of its proper divisors (79338819).

120543549 is an equidigital number, since it uses as much as digits as its factorization.

120543549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 120543549 is about 10979.2326234578. The cubic root of 120543549 is about 493.9860194266.

The spelling of 120543549 in words is "one hundred twenty million, five hundred forty-three thousand, five hundred forty-nine".