1173065 has 4 divisors (see below), whose sum is σ = 1407684. Its totient is φ = 938448.

The previous prime is 1173059. The next prime is 1173101. The reversal of 1173065 is 5603711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5603711 = 137 ⋅40903.

It can be written as a sum of positive squares in 2 ways, for example, as 118336 + 1054729 = 344^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 1173065 - 2⁶ = 1173001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1173065.

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, 117302 + ... + 117311.

It is an arithmetic number, because the mean of its divisors is an integer number (351921).

2^1173065 is an apocalyptic number.

It is an amenable number.

1173065 is a deficient number, since it is larger than the sum of its proper divisors (234619).

1173065 is an equidigital number, since it uses as much as digits as its factorization.

1173065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234618.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1173065 is about 1083.0812527230. The cubic root of 1173065 is about 105.4647576632.

Adding to 1173065 its reverse (5603711), we get a palindrome (6776776).

The spelling of 1173065 in words is "one million, one hundred seventy-three thousand, sixty-five".