120551906 has 8 divisors (see below), whose sum is σ = 181053264. Its totient is φ = 60200820.

The previous prime is 120551863. The next prime is 120551909. The reversal of 120551906 is 609155021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (120551909) 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 3 ways as a sum of consecutive naturals, for example, 35540 + ... + 38783.

It is an arithmetic number, because the mean of its divisors is an integer number (22631658).

Almost surely, 2^120551906 is an apocalyptic number.

120551906 is a deficient number, since it is larger than the sum of its proper divisors (60501358).

120551906 is an equidigital number, since it uses as much as digits as its factorization.

120551906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75136.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 120551906 is about 10979.6131990157. The cubic root of 120551906 is about 493.9974347914.

The spelling of 120551906 in words is "one hundred twenty million, five hundred fifty-one thousand, nine hundred six".