320118265 has 16 divisors (see below), whose sum is σ = 398041488. Its totient is φ = 246951936.

The previous prime is 320118263. The next prime is 320118277. The reversal of 320118265 is 562811023.

It can be written as a sum of positive squares in 8 ways, for example, as 89321401 + 230796864 = 9451^2 + 15192^2 .

It is a cyclic number.

It is not a de Polignac number, because 320118265 - 2¹ = 320118263 is a prime.

It is a super-3 number, since 3×320118265³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320118263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13249 + ... + 28561.

It is an arithmetic number, because the mean of its divisors is an integer number (24877593).

Almost surely, 2^320118265 is an apocalyptic number.

It is an amenable number.

320118265 is a deficient number, since it is larger than the sum of its proper divisors (77923223).

320118265 is a wasteful number, since it uses less digits than its factorization.

320118265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15468.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 320118265 is about 17891.8491218767. The cubic root of 320118265 is about 684.0746309195.

Adding to 320118265 its reverse (562811023), we get a palindrome (882929288).

The spelling of 320118265 in words is "three hundred twenty million, one hundred eighteen thousand, two hundred sixty-five".