1307312 has 10 divisors (see below), whose sum is σ = 2532948. Its totient is φ = 653648.

The previous prime is 1307311. The next prime is 1307347. The reversal of 1307312 is 2137031.

It is not an unprimeable number, because it can be changed into a prime (1307311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40838 + ... + 40869.

2^1307312 is an apocalyptic number.

It is an amenable number.

1307312 is a deficient number, since it is larger than the sum of its proper divisors (1225636).

1307312 is an equidigital number, since it uses as much as digits as its factorization.

1307312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81715 (or 81709 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 1307312 is about 1143.3774529874. The cubic root of 1307312 is about 109.3435280334.

The spelling of 1307312 in words is "one million, three hundred seven thousand, three hundred twelve".