120551755 has 8 divisors (see below), whose sum is σ = 145300752. Its totient is φ = 96015648.

The previous prime is 120551749. The next prime is 120551759. The reversal of 120551755 is 557155021.

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 120551755 - 2⁵ = 120551723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120551759) 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 7 ways as a sum of consecutive naturals, for example, 51972 + ... + 54241.

It is an arithmetic number, because the mean of its divisors is an integer number (18162594).

Almost surely, 2^120551755 is an apocalyptic number.

120551755 is a deficient number, since it is larger than the sum of its proper divisors (24748997).

120551755 is a wasteful number, since it uses less digits than its factorization.

120551755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106445.

The product of its (nonzero) digits is 8750, while the sum is 31.

The square root of 120551755 is about 10979.6063226329. The cubic root of 120551755 is about 493.9972285354.

The spelling of 120551755 in words is "one hundred twenty million, five hundred fifty-one thousand, seven hundred fifty-five".