1301312 has 14 divisors (see below), whose sum is σ = 2582418. Its totient is φ = 650624.

The previous prime is 1301297. The next prime is 1301323. The reversal of 1301312 is 2131031.

It can be written as a sum of positive squares in only one way, i.e., 1290496 + 10816 = 1136^2 + 104^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1301293 and 1301302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103 + ... + 10230.

2^1301312 is an apocalyptic number.

It is an amenable number.

1301312 is a deficient number, since it is larger than the sum of its proper divisors (1281106).

1301312 is an equidigital number, since it uses as much as digits as its factorization.

1301312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20345 (or 20335 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1301312 is about 1140.7506300678. The cubic root of 1301312 is about 109.1759915375.

Adding to 1301312 its reverse (2131031), we get a palindrome (3432343).

The spelling of 1301312 in words is "one million, three hundred one thousand, three hundred twelve".