1173116265 has 64 divisors (see below), whose sum is σ = 2081548800. Its totient is φ = 562028544.

The previous prime is 1173116261. The next prime is 1173116279. The reversal of 1173116265 is 5626113711.

It is not a de Polignac number, because 1173116265 - 2² = 1173116261 is a prime.

It is a super-3 number, since 3×1173116265³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1173116261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 368601 + ... + 371769.

It is an arithmetic number, because the mean of its divisors is an integer number (32524200).

Almost surely, 2^1173116265 is an apocalyptic number.

1173116265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1173116265 is a deficient number, since it is larger than the sum of its proper divisors (908432535).

1173116265 is a wasteful number, since it uses less digits than its factorization.

1173116265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266.

The product of its digits is 7560, while the sum is 33.

The square root of 1173116265 is about 34250.7848815177. The cubic root of 1173116265 is about 1054.6629397255.

Adding to 1173116265 its reverse (5626113711), we get a palindrome (6799229976).

The spelling of 1173116265 in words is "one billion, one hundred seventy-three million, one hundred sixteen thousand, two hundred sixty-five".