120551808 has 256 divisors, whose sum is σ = 383846400. Its totient is φ = 33177600.

The previous prime is 120551803. The next prime is 120551813. The reversal of 120551808 is 808155021.

It is an interprime number because it is at equal distance from previous prime (120551803) and next prime (120551813).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120551801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2940268 + ... + 2940308.

It is an arithmetic number, because the mean of its divisors is an integer number (1499400).

Almost surely, 2^120551808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120551808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191923200).

120551808 is an abundant number, since it is smaller than the sum of its proper divisors (263294592).

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

120551808 is a wasteful number, since it uses less digits than its factorization.

120551808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 120551808 is about 10979.6087361982. The cubic root of 120551808 is about 493.9973009299.

The spelling of 120551808 in words is "one hundred twenty million, five hundred fifty-one thousand, eight hundred eight".