1165165 has 8 divisors (see below), whose sum is σ = 1404000. Its totient is φ = 928272.

The previous prime is 1165147. The next prime is 1165183. The reversal of 1165165 is 5615611.

It is an interprime number because it is at equal distance from previous prime (1165147) and next prime (1165183).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1165165 - 2⁷ = 1165037 is a prime.

1165165 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2086 + ... + 2584.

It is an arithmetic number, because the mean of its divisors is an integer number (175500).

2^1165165 is an apocalyptic number.

It is an amenable number.

1165165 is a deficient number, since it is larger than the sum of its proper divisors (238835).

1165165 is an equidigital number, since it uses as much as digits as its factorization.

1165165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971.

The product of its digits is 900, while the sum is 25.

The square root of 1165165 is about 1079.4280893140. The cubic root of 1165165 is about 105.2274735842.

The spelling of 1165165 in words is "one million, one hundred sixty-five thousand, one hundred sixty-five".