1318349 has 2 divisors, whose sum is σ = 1318350. Its totient is φ = 1318348.

The previous prime is 1318313. The next prime is 1318379. The reversal of 1318349 is 9438131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 964324 + 354025 = 982^2 + 595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1318349 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1318379) 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, 659174 + 659175.

It is an arithmetic number, because the mean of its divisors is an integer number (659175).

2^1318349 is an apocalyptic number.

It is an amenable number.

1318349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318349 is an equidigital number, since it uses as much as digits as its factorization.

1318349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 1318349 is about 1148.1937989730. The cubic root of 1318349 is about 109.6503775455.

The spelling of 1318349 in words is "one million, three hundred eighteen thousand, three hundred forty-nine".