1306312 has 16 divisors (see below), whose sum is σ = 2799360. Its totient is φ = 559824.

The previous prime is 1306289. The next prime is 1306313. The reversal of 1306312 is 2136031.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306313) 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, 11608 + ... + 11719.

It is an arithmetic number, because the mean of its divisors is an integer number (174960).

2^1306312 is an apocalyptic number.

It is an amenable number.

1306312 is an abundant number, since it is smaller than the sum of its proper divisors (1493048).

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

1306312 is a wasteful number, since it uses less digits than its factorization.

1306312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23340 (or 23336 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1306312 is about 1142.9400684200. The cubic root of 1306312 is about 109.3156409338.

The spelling of 1306312 in words is "one million, three hundred six thousand, three hundred twelve".