120534565 has 4 divisors (see below), whose sum is σ = 144641484. Its totient is φ = 96427648.

The previous prime is 120534553. The next prime is 120534571. The reversal of 120534565 is 565435021.

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 86731969 + 33802596 = 9313^2 + 5814^2 .

It is a cyclic number.

It is not a de Polignac number, because 120534565 - 2²¹ = 118437413 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 a Duffinian number.

It is a congruent 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, 12053452 + ... + 12053461.

It is an arithmetic number, because the mean of its divisors is an integer number (36160371).

Almost surely, 2^120534565 is an apocalyptic number.

It is an amenable number.

120534565 is a deficient number, since it is larger than the sum of its proper divisors (24106919).

120534565 is an equidigital number, since it uses as much as digits as its factorization.

120534565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24106918.

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

The square root of 120534565 is about 10978.8234797723. The cubic root of 120534565 is about 493.9737470135.

Adding to 120534565 its reverse (565435021), we get a palindrome (685969586).

The spelling of 120534565 in words is "one hundred twenty million, five hundred thirty-four thousand, five hundred sixty-five".