1087111 has 4 divisors (see below), whose sum is σ = 1090224. Its totient is φ = 1084000.

The previous prime is 1087109. The next prime is 1087117. The reversal of 1087111 is 1117801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1087111 - 2¹ = 1087109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955 + ... + 1756.

It is an arithmetic number, because the mean of its divisors is an integer number (272556).

2^1087111 is an apocalyptic number.

1087111 is a deficient number, since it is larger than the sum of its proper divisors (3113).

1087111 is an equidigital number, since it uses as much as digits as its factorization.

1087111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112.

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

The square root of 1087111 is about 1042.6461528246. The cubic root of 1087111 is about 102.8232428885.

The spelling of 1087111 in words is "one million, eighty-seven thousand, one hundred eleven".