120565345 has 4 divisors (see below), whose sum is σ = 144678420. Its totient is φ = 96452272.

The previous prime is 120565321. The next prime is 120565373. The reversal of 120565345 is 543565021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26998416 + 93566929 = 5196^2 + 9673^2 .

It is a cyclic number.

It is not a de Polignac number, because 120565345 - 2⁷ = 120565217 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12056530 + ... + 12056539.

It is an arithmetic number, because the mean of its divisors is an integer number (36169605).

Almost surely, 2^120565345 is an apocalyptic number.

It is an amenable number.

120565345 is a deficient number, since it is larger than the sum of its proper divisors (24113075).

120565345 is an equidigital number, since it uses as much as digits as its factorization.

120565345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24113074.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 120565345 is about 10980.2251798403. The cubic root of 120565345 is about 494.0157908812.

The spelling of 120565345 in words is "one hundred twenty million, five hundred sixty-five thousand, three hundred forty-five".