1318259 has 2 divisors, whose sum is σ = 1318260. Its totient is φ = 1318258.

The previous prime is 1318249. The next prime is 1318267. The reversal of 1318259 is 9528131.

It is a strong prime.

It is an emirp because it is prime and its reverse (9528131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1318259 - 2⁸ = 1318003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1318249) 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, 659129 + 659130.

It is an arithmetic number, because the mean of its divisors is an integer number (659130).

2^1318259 is an apocalyptic number.

1318259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318259 is an equidigital number, since it uses as much as digits as its factorization.

1318259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 29.

The square root of 1318259 is about 1148.1546063140. The cubic root of 1318259 is about 109.6478823138.

The spelling of 1318259 in words is "one million, three hundred eighteen thousand, two hundred fifty-nine".