120745563 has 8 divisors (see below), whose sum is σ = 161130000. Its totient is φ = 80429088.

The previous prime is 120745553. The next prime is 120745621. The reversal of 120745563 is 365547021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120745563 - 2¹⁴ = 120729179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120745553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12688 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (20141250).

Almost surely, 2^120745563 is an apocalyptic number.

120745563 is a deficient number, since it is larger than the sum of its proper divisors (40384437).

120745563 is a wasteful number, since it uses less digits than its factorization.

120745563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33981.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 120745563 is about 10988.4285955727. The cubic root of 120745563 is about 494.2618157358.

The spelling of 120745563 in words is "one hundred twenty million, seven hundred forty-five thousand, five hundred sixty-three".