220140065 has 4 divisors (see below), whose sum is σ = 264168084. Its totient is φ = 176112048.

The previous prime is 220140043. The next prime is 220140077. The reversal of 220140065 is 560041022.

It is a happy number.

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 38887696 + 181252369 = 6236^2 + 13463^2 .

It is a cyclic number.

It is not a de Polignac number, because 220140065 - 2⁶ = 220140001 is a prime.

It is a Duffinian 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, 22014002 + ... + 22014011.

It is an arithmetic number, because the mean of its divisors is an integer number (66042021).

Almost surely, 2^220140065 is an apocalyptic number.

It is an amenable number.

220140065 is a deficient number, since it is larger than the sum of its proper divisors (44028019).

220140065 is an equidigital number, since it uses as much as digits as its factorization.

220140065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44028018.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 220140065 is about 14837.1178131064. The cubic root of 220140065 is about 603.8091595158.

Adding to 220140065 its reverse (560041022), we get a palindrome (780181087).

The spelling of 220140065 in words is "two hundred twenty million, one hundred forty thousand, sixty-five".