1075287 has 4 divisors (see below), whose sum is σ = 1433720. Its totient is φ = 716856.

The previous prime is 1075279. The next prime is 1075289. The reversal of 1075287 is 7825701.

It is a happy number.

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

It is not a de Polignac number, because 1075287 - 2³ = 1075279 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

1075287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075289) 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, 179212 + ... + 179217.

It is an arithmetic number, because the mean of its divisors is an integer number (358430).

2^1075287 is an apocalyptic number.

1075287 is a deficient number, since it is larger than the sum of its proper divisors (358433).

1075287 is an equidigital number, since it uses as much as digits as its factorization.

1075287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358432.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 1075287 is about 1036.9604621199. The cubic root of 1075287 is about 102.4490962789.

The spelling of 1075287 in words is "one million, seventy-five thousand, two hundred eighty-seven".