1316365 has 4 divisors (see below), whose sum is σ = 1579644. Its totient is φ = 1053088.

The previous prime is 1316363. The next prime is 1316389. The reversal of 1316365 is 5636131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 328329 + 988036 = 573^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316365 - 2¹ = 1316363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131632 + ... + 131641.

It is an arithmetic number, because the mean of its divisors is an integer number (394911).

2^1316365 is an apocalyptic number.

It is an amenable number.

1316365 is a deficient number, since it is larger than the sum of its proper divisors (263279).

1316365 is an equidigital number, since it uses as much as digits as its factorization.

1316365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263278.

The product of its digits is 1620, while the sum is 25.

The square root of 1316365 is about 1147.3295080316. The cubic root of 1316365 is about 109.5953451857.

It can be divided in two parts, 1316 and 365, that added together give a square (1681 = 41²).

The spelling of 1316365 in words is "one million, three hundred sixteen thousand, three hundred sixty-five".