120081563 has 4 divisors (see below), whose sum is σ = 137236080. Its totient is φ = 102927048.

The previous prime is 120081553. The next prime is 120081571. The reversal of 120081563 is 365180021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120081563 - 2⁸ = 120081307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120081503) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 8577248 + ... + 8577261.

It is an arithmetic number, because the mean of its divisors is an integer number (34309020).

Almost surely, 2^120081563 is an apocalyptic number.

120081563 is a deficient number, since it is larger than the sum of its proper divisors (17154517).

120081563 is an equidigital number, since it uses as much as digits as its factorization.

120081563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17154516.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 120081563 is about 10958.1733423048. The cubic root of 120081563 is about 493.3541404766.

The spelling of 120081563 in words is "one hundred twenty million, eighty-one thousand, five hundred sixty-three".