1318329 has 16 divisors (see below), whose sum is σ = 1971840. Its totient is φ = 870480.

The previous prime is 1318313. The next prime is 1318349. The reversal of 1318329 is 9238131.

It is not a de Polignac number, because 1318329 - 2⁴ = 1318313 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1318349) 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 in 15 ways as a sum of consecutive naturals, for example, 4084 + ... + 4394.

It is an arithmetic number, because the mean of its divisors is an integer number (123240).

2^1318329 is an apocalyptic number.

It is an amenable number.

1318329 is a deficient number, since it is larger than the sum of its proper divisors (653511).

1318329 is a wasteful number, since it uses less digits than its factorization.

1318329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 471 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1318329 is about 1148.1850896088. The cubic root of 1318329 is about 109.6498230594.

It can be divided in two parts, 131832 and 9, that added together give a triangular number (131841 = T₅₁₃).

The spelling of 1318329 in words is "one million, three hundred eighteen thousand, three hundred twenty-nine".