120404755 has 4 divisors (see below), whose sum is σ = 144485712. Its totient is φ = 96323800.

The previous prime is 120404749. The next prime is 120404783. The reversal of 120404755 is 557404021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120404755 - 2¹¹ = 120402707 is a prime.

It is a super-3 number, since 3×120404755³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12040471 + ... + 12040480.

It is an arithmetic number, because the mean of its divisors is an integer number (36121428).

Almost surely, 2^120404755 is an apocalyptic number.

120404755 is a deficient number, since it is larger than the sum of its proper divisors (24080957).

120404755 is an equidigital number, since it uses as much as digits as its factorization.

120404755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24080956.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 120404755 is about 10972.9100515770. The cubic root of 120404755 is about 493.7963545648.

Adding to 120404755 its reverse (557404021), we get a palindrome (677808776).

The spelling of 120404755 in words is "one hundred twenty million, four hundred four thousand, seven hundred fifty-five".