1127285 has 4 divisors (see below), whose sum is σ = 1352748. Its totient is φ = 901824.

The previous prime is 1127281. The next prime is 1127297. The reversal of 1127285 is 5827211.

1127285 = T₆₆₉ + T₆₇₀ + ... + T₆₇₃.

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

It can be written as a sum of positive squares in 2 ways, for example, as 498436 + 628849 = 706^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127285 - 2² = 1127281 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 (1127281) 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 3 ways as a sum of consecutive naturals, for example, 112724 + ... + 112733.

It is an arithmetic number, because the mean of its divisors is an integer number (338187).

2^1127285 is an apocalyptic number.

It is an amenable number.

1127285 is a deficient number, since it is larger than the sum of its proper divisors (225463).

1127285 is an equidigital number, since it uses as much as digits as its factorization.

1127285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225462.

The product of its digits is 1120, while the sum is 26.

The square root of 1127285 is about 1061.7367847070. The cubic root of 1127285 is about 104.0745582224.

The spelling of 1127285 in words is "one million, one hundred twenty-seven thousand, two hundred eighty-five".