1283185 has 8 divisors (see below), whose sum is σ = 1547136. Its totient is φ = 1021680.

The previous prime is 1283179. The next prime is 1283207. The reversal of 1283185 is 5813821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1283185 - 2¹⁷ = 1152113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882 + ... + 1828.

It is an arithmetic number, because the mean of its divisors is an integer number (193392).

2^1283185 is an apocalyptic number.

It is an amenable number.

1283185 is a deficient number, since it is larger than the sum of its proper divisors (263951).

1283185 is an equidigital number, since it uses as much as digits as its factorization.

1283185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223.

The product of its digits is 1920, while the sum is 28.

The square root of 1283185 is about 1132.7775598060. Note that the first 3 decimals coincide. The cubic root of 1283185 is about 108.6666865311. Note that the first 4 decimals are identical.

The spelling of 1283185 in words is "one million, two hundred eighty-three thousand, one hundred eighty-five".