1312065 has 16 divisors (see below), whose sum is σ = 2332800. Its totient is φ = 699696.

The previous prime is 1312027. The next prime is 1312079. The reversal of 1312065 is 5602131.

It is not a de Polignac number, because 1312065 - 2⁶ = 1312001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4725 + ... + 4994.

It is an arithmetic number, because the mean of its divisors is an integer number (145800).

2^1312065 is an apocalyptic number.

1312065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312065 is a deficient number, since it is larger than the sum of its proper divisors (1020735).

1312065 is an equidigital number, since it uses as much as digits as its factorization.

1312065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733 (or 9727 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1312065 is about 1145.4540584415. The cubic root of 1312065 is about 109.4758813459.

Adding to 1312065 its reverse (5602131), we get a palindrome (6914196).

The spelling of 1312065 in words is "one million, three hundred twelve thousand, sixty-five".