1283245 has 16 divisors (see below), whose sum is σ = 1686528. Its totient is φ = 933120.

The previous prime is 1283237. The next prime is 1283297. The reversal of 1283245 is 5423821.

It is not a de Polignac number, because 1283245 - 2³ = 1283237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2392 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (105408).

2^1283245 is an apocalyptic number.

It is an amenable number.

1283245 is a deficient number, since it is larger than the sum of its proper divisors (403283).

1283245 is a wasteful number, since it uses less digits than its factorization.

1283245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its digits is 1920, while the sum is 25.

The square root of 1283245 is about 1132.8040430719. The cubic root of 1283245 is about 108.6683802073.

The spelling of 1283245 in words is "one million, two hundred eighty-three thousand, two hundred forty-five".