1018811 has 2 divisors, whose sum is σ = 1018812. Its totient is φ = 1018810.

The previous prime is 1018807. The next prime is 1018813. The reversal of 1018811 is 1188101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1018811 - 2² = 1018807 is a prime.

Together with 1018813, 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 (1018813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509405 + 509406.

It is an arithmetic number, because the mean of its divisors is an integer number (509406).

2^1018811 is an apocalyptic number.

1018811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018811 is an equidigital number, since it uses as much as digits as its factorization.

1018811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 1018811 is about 1009.3616794787. The cubic root of 1018811 is about 100.6231422056.

The spelling of 1018811 in words is "one million, eighteen thousand, eight hundred eleven".