1143087 has 24 divisors (see below), whose sum is σ = 1736448. Its totient is φ = 667920.

The previous prime is 1143073. The next prime is 1143089. The reversal of 1143087 is 7803411.

It is not a de Polignac number, because 1143087 - 2⁴ = 1143071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143089) 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 in 23 ways as a sum of consecutive naturals, for example, 17028 + ... + 17094.

It is an arithmetic number, because the mean of its divisors is an integer number (72352).

2^1143087 is an apocalyptic number.

1143087 is a deficient number, since it is larger than the sum of its proper divisors (593361).

1143087 is a wasteful number, since it uses less digits than its factorization.

1143087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1143087 is about 1069.1524680793. The cubic root of 1143087 is about 104.5586005580.

Adding to 1143087 its reverse (7803411), we get a palindrome (8946498).

The spelling of 1143087 in words is "one million, one hundred forty-three thousand, eighty-seven".