120806590 has 16 divisors (see below), whose sum is σ = 230243472. Its totient is φ = 45480064.

The previous prime is 120806533. The next prime is 120806639. The reversal of 120806590 is 95608021.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 355144 + ... + 355483.

It is an arithmetic number, because the mean of its divisors is an integer number (14390217).

Almost surely, 2^120806590 is an apocalyptic number.

120806590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120806590 is a deficient number, since it is larger than the sum of its proper divisors (109436882).

120806590 is a wasteful number, since it uses less digits than its factorization.

120806590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710651.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 120806590 is about 10991.2051204588. The cubic root of 120806590 is about 494.3450713432.

The spelling of 120806590 in words is "one hundred twenty million, eight hundred six thousand, five hundred ninety".