1307318 has 4 divisors (see below), whose sum is σ = 1960980. Its totient is φ = 653658.

The previous prime is 1307311. The next prime is 1307347. The reversal of 1307318 is 8137031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1307293 and 1307302.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326828 + ... + 326831.

It is an arithmetic number, because the mean of its divisors is an integer number (490245).

2^1307318 is an apocalyptic number.

1307318 is a deficient number, since it is larger than the sum of its proper divisors (653662).

1307318 is an equidigital number, since it uses as much as digits as its factorization.

1307318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653661.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1307318 is about 1143.3800767899. The cubic root of 1307318 is about 109.3436953131.

The spelling of 1307318 in words is "one million, three hundred seven thousand, three hundred eighteen".