1312864 has 24 divisors (see below), whose sum is σ = 2954448. Its totient is φ = 562560.

The previous prime is 1312853. The next prime is 1312867. The reversal of 1312864 is 4682131.

It is a super-2 number, since 2×1312864² = 3447223764992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2707 + ... + 3154.

It is an arithmetic number, because the mean of its divisors is an integer number (123102).

2^1312864 is an apocalyptic number.

1312864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1312864 is an abundant number, since it is smaller than the sum of its proper divisors (1641584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312864 is an equidigital number, since it uses as much as digits as its factorization.

1312864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5878 (or 5870 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 1312864 is about 1145.8027753501. The cubic root of 1312864 is about 109.4980991170.

Adding to 1312864 its reverse (4682131), we get a palindrome (5994995).

The spelling of 1312864 in words is "one million, three hundred twelve thousand, eight hundred sixty-four".