1285183 has 6 divisors (see below), whose sum is σ = 1365536. Its totient is φ = 1209312.

The previous prime is 1285181. The next prime is 1285199. The reversal of 1285183 is 3815821.

1285183 is nontrivially palindromic in base 5.

It is not a de Polignac number, because 1285183 - 2¹ = 1285181 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 (1285181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1935 + ... + 2512.

2^1285183 is an apocalyptic number.

1285183 is a deficient number, since it is larger than the sum of its proper divisors (80353).

1285183 is an equidigital number, since it uses as much as digits as its factorization.

1285183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481 (or 4464 counting only the distinct ones).

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

The square root of 1285183 is about 1133.6591198416. The cubic root of 1285183 is about 108.7230575790.

The spelling of 1285183 in words is "one million, two hundred eighty-five thousand, one hundred eighty-three".