1118209087 has 2 divisors, whose sum is σ = 1118209088. Its totient is φ = 1118209086.

The previous prime is 1118209069. The next prime is 1118209111. The reversal of 1118209087 is 7809028111.

It is a weak prime.

It is an emirp because it is prime and its reverse (7809028111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118209087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118209067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559104543 + 559104544.

It is an arithmetic number, because the mean of its divisors is an integer number (559104544).

Almost surely, 2^1118209087 is an apocalyptic number.

1118209087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118209087 is an equidigital number, since it uses as much as digits as its factorization.

1118209087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 37.

The square root of 1118209087 is about 33439.6334758621. The cubic root of 1118209087 is about 1037.9449950001.

The spelling of 1118209087 in words is "one billion, one hundred eighteen million, two hundred nine thousand, eighty-seven".