1318818859 has 2 divisors, whose sum is σ = 1318818860. Its totient is φ = 1318818858.

The previous prime is 1318818793. The next prime is 1318818863. The reversal of 1318818859 is 9588188131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1318818859 - 2¹⁷ = 1318687787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1318818869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659409429 + 659409430.

It is an arithmetic number, because the mean of its divisors is an integer number (659409430).

Almost surely, 2^1318818859 is an apocalyptic number.

1318818859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318818859 is an equidigital number, since it uses as much as digits as its factorization.

1318818859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 52.

The square root of 1318818859 is about 36315.5456932703. The cubic root of 1318818859 is about 1096.6340244696.

The spelling of 1318818859 in words is "one billion, three hundred eighteen million, eight hundred eighteen thousand, eight hundred fifty-nine".