1330312 has 8 divisors (see below), whose sum is σ = 2494350. Its totient is φ = 665152.

The previous prime is 1330309. The next prime is 1330313. The reversal of 1330312 is 2130331.

It can be written as a sum of positive squares in only one way, i.e., 1094116 + 236196 = 1046^2 + 486^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1330292 and 1330301.

It is not an unprimeable number, because it can be changed into a prime (1330313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83137 + ... + 83152.

2^1330312 is an apocalyptic number.

It is an amenable number.

1330312 is a deficient number, since it is larger than the sum of its proper divisors (1164038).

1330312 is a wasteful number, since it uses less digits than its factorization.

1330312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166295 (or 166291 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1330312 is about 1153.3915206902. The cubic root of 1330312 is about 109.9810435654.

Adding to 1330312 its reverse (2130331), we get a palindrome (3460643).

The spelling of 1330312 in words is "one million, three hundred thirty thousand, three hundred twelve".