120831648 has 144 divisors (see below), whose sum is σ = 390930624. Its totient is φ = 32471040.

The previous prime is 120831647. The next prime is 120831709. The reversal of 120831648 is 846138021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120831647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79213 + ... + 80723.

It is an arithmetic number, because the mean of its divisors is an integer number (2714796).

Almost surely, 2^120831648 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 120831648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195465312).

120831648 is an abundant number, since it is smaller than the sum of its proper divisors (270098976).

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

120831648 is a wasteful number, since it uses less digits than its factorization.

120831648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 120831648 is about 10992.3449727526. The cubic root of 120831648 is about 494.3792484037.

Adding to 120831648 its reverse (846138021), we get a palindrome (966969669).

It can be divided in two parts, 12083 and 1648, that added together give a palindrome (13731).

The spelling of 120831648 in words is "one hundred twenty million, eight hundred thirty-one thousand, six hundred forty-eight".