1306065 has 8 divisors (see below), whose sum is σ = 2089728. Its totient is φ = 696560.

The previous prime is 1306051. The next prime is 1306069. The reversal of 1306065 is 5606031.

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

It is not a de Polignac number, because 1306065 - 2⁵ = 1306033 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43521 + ... + 43550.

It is an arithmetic number, because the mean of its divisors is an integer number (261216).

2^1306065 is an apocalyptic number.

1306065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1306065 is a deficient number, since it is larger than the sum of its proper divisors (783663).

1306065 is an equidigital number, since it uses as much as digits as its factorization.

1306065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87079.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1306065 is about 1142.8320086522. The cubic root of 1306065 is about 109.3087506286.

The spelling of 1306065 in words is "one million, three hundred six thousand, sixty-five".