120040554 has 16 divisors (see below), whose sum is σ = 240284448. Its totient is φ = 39979632.

The previous prime is 120040549. The next prime is 120040561. The reversal of 120040554 is 455040021.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120040554.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172 + ... + 15495.

It is an arithmetic number, because the mean of its divisors is an integer number (15017778).

Almost surely, 2^120040554 is an apocalyptic number.

120040554 is an abundant number, since it is smaller than the sum of its proper divisors (120243894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120040554 is a wasteful number, since it uses less digits than its factorization.

120040554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16949.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 120040554 is about 10956.3020221241. The cubic root of 120040554 is about 493.2979723660.

Adding to 120040554 its reverse (455040021), we get a palindrome (575080575).

The spelling of 120040554 in words is "one hundred twenty million, forty thousand, five hundred fifty-four".