120820552 has 8 divisors (see below), whose sum is σ = 226538550. Its totient is φ = 60410272.

The previous prime is 120820537. The next prime is 120820571. The reversal of 120820552 is 255028021.

It can be written as a sum of positive squares in only one way, i.e., 120428676 + 391876 = 10974^2 + 626^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7551277 + ... + 7551292.

Almost surely, 2^120820552 is an apocalyptic number.

It is an amenable number.

120820552 is a deficient number, since it is larger than the sum of its proper divisors (105717998).

120820552 is a wasteful number, since it uses less digits than its factorization.

120820552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15102575 (or 15102571 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 120820552 is about 10991.8402462918. The cubic root of 120820552 is about 494.3641149511.

Adding to 120820552 its reverse (255028021), we get a palindrome (375848573).

The spelling of 120820552 in words is "one hundred twenty million, eight hundred twenty thousand, five hundred fifty-two".