1318319 has 4 divisors (see below), whose sum is σ = 1320696. Its totient is φ = 1315944.

The previous prime is 1318313. The next prime is 1318349. The reversal of 1318319 is 9138131.

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

It is a cyclic number.

It is not a de Polignac number, because 1318319 - 2⁸ = 1318063 is a prime.

It is a super-2 number, since 2×1318319² = 3475929971522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318313) 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, 137 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (330174).

2^1318319 is an apocalyptic number.

1318319 is a deficient number, since it is larger than the sum of its proper divisors (2377).

1318319 is an equidigital number, since it uses as much as digits as its factorization.

1318319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376.

The product of its digits is 648, while the sum is 26.

The square root of 1318319 is about 1148.1807349020. The cubic root of 1318319 is about 109.6495458142.

The spelling of 1318319 in words is "one million, three hundred eighteen thousand, three hundred nineteen".