1111087 has 2 divisors, whose sum is σ = 1111088. Its totient is φ = 1111086.

The previous prime is 1111081. The next prime is 1111091. The reversal of 1111087 is 7801111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111087 - 2⁷ = 1110959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555543 + 555544.

It is an arithmetic number, because the mean of its divisors is an integer number (555544).

2^1111087 is an apocalyptic number.

1111087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111087 is an equidigital number, since it uses as much as digits as its factorization.

1111087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 19.

The square root of 1111087 is about 1054.0811164232. The cubic root of 1111087 is about 103.5736676714.

Adding to 1111087 its reverse (7801111), we get a palindrome (8912198).

The spelling of 1111087 in words is "one million, one hundred eleven thousand, eighty-seven".