120243455 has 8 divisors (see below), whose sum is σ = 144375792. Its totient is φ = 96139008.

The previous prime is 120243443. The next prime is 120243463. The reversal of 120243455 is 554342021.

It is a happy number.

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 120243455 - 2¹⁸ = 119981311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4124 + ... + 16046.

It is an arithmetic number, because the mean of its divisors is an integer number (18046974).

Almost surely, 2^120243455 is an apocalyptic number.

120243455 is a deficient number, since it is larger than the sum of its proper divisors (24132337).

120243455 is a wasteful number, since it uses less digits than its factorization.

120243455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13945.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 120243455 is about 10965.5576693573. The cubic root of 120243455 is about 493.5757515777.

Adding to 120243455 its reverse (554342021), we get a palindrome (674585476).

The spelling of 120243455 in words is "one hundred twenty million, two hundred forty-three thousand, four hundred fifty-five".