1165417065 has 72 divisors (see below), whose sum is σ = 2226020160. Its totient is φ = 584817408.

The previous prime is 1165417063. The next prime is 1165417067. The reversal of 1165417065 is 5607145611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1165417063) and next prime (1165417067).

It is not a de Polignac number, because 1165417065 - 2¹ = 1165417063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1165417063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 349476 + ... + 352794.

Almost surely, 2^1165417065 is an apocalyptic number.

1165417065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1165417065 is a deficient number, since it is larger than the sum of its proper divisors (1060603095).

1165417065 is an equidigital number, since it uses as much as digits as its factorization.

1165417065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373 (or 3344 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1165417065 is about 34138.2053570483. The cubic root of 1165417065 is about 1052.3506113634.

The spelling of 1165417065 in words is "one billion, one hundred sixty-five million, four hundred seventeen thousand, sixty-five".