1018859 has 2 divisors, whose sum is σ = 1018860. Its totient is φ = 1018858.

The previous prime is 1018817. The next prime is 1018873. The reversal of 1018859 is 9588101.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9588101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1018859 - 2¹² = 1014763 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1018879) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509429 + 509430.

It is an arithmetic number, because the mean of its divisors is an integer number (509430).

2^1018859 is an apocalyptic number.

1018859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018859 is an equidigital number, since it uses as much as digits as its factorization.

1018859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1018859 is about 1009.3854566022. The cubic root of 1018859 is about 100.6247224251.

The spelling of 1018859 in words is "one million, eighteen thousand, eight hundred fifty-nine".