120105552 has 80 divisors (see below), whose sum is σ = 364218752. Its totient is φ = 33384960.

The previous prime is 120105547. The next prime is 120105611. The reversal of 120105552 is 255501021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7602 + ... + 17262.

Almost surely, 2^120105552 is an apocalyptic number.

120105552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120105552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182109376).

120105552 is an abundant number, since it is smaller than the sum of its proper divisors (244113200).

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

120105552 is a wasteful number, since it uses less digits than its factorization.

120105552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9716 (or 9710 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 120105552 is about 10959.2678587577. The cubic root of 120105552 is about 493.3869911606.

Adding to 120105552 its reverse (255501021), we get a palindrome (375606573).

The spelling of 120105552 in words is "one hundred twenty million, one hundred five thousand, five hundred fifty-two".