1318859 has 2 divisors, whose sum is σ = 1318860. Its totient is φ = 1318858.

The previous prime is 1318841. The next prime is 1318861. The reversal of 1318859 is 9588131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1318859 - 2¹⁶ = 1253323 is a prime.

Together with 1318861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1318829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659429 + 659430.

It is an arithmetic number, because the mean of its divisors is an integer number (659430).

2^1318859 is an apocalyptic number.

1318859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318859 is an equidigital number, since it uses as much as digits as its factorization.

1318859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 35.

The square root of 1318859 is about 1148.4158654425. The cubic root of 1318859 is about 109.6645150471.

The spelling of 1318859 in words is "one million, three hundred eighteen thousand, eight hundred fifty-nine".