120544243 has 4 divisors (see below), whose sum is σ = 122195608. Its totient is φ = 118892880.

The previous prime is 120544241. The next prime is 120544273. The reversal of 120544243 is 342445021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342445021 = 29 ⋅11808449.

It is a cyclic number.

It is not a de Polignac number, because 120544243 - 2¹ = 120544241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120544241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825573 + ... + 825718.

It is an arithmetic number, because the mean of its divisors is an integer number (30548902).

Almost surely, 2^120544243 is an apocalyptic number.

120544243 is a deficient number, since it is larger than the sum of its proper divisors (1651365).

120544243 is an equidigital number, since it uses as much as digits as its factorization.

120544243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651364.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 120544243 is about 10979.2642285355. The cubic root of 120544243 is about 493.9869674260.

Adding to 120544243 its reverse (342445021), we get a palindrome (462989264).

The spelling of 120544243 in words is "one hundred twenty million, five hundred forty-four thousand, two hundred forty-three".