1283555 has 36 divisors (see below), whose sum is σ = 2002752. Its totient is φ = 786240.

The previous prime is 1283549. The next prime is 1283563. The reversal of 1283555 is 5553821.

1283555 is nontrivially palindromic in base 9.

It is not a de Polignac number, because 1283555 - 2⁴ = 1283539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41390 + ... + 41420.

It is an arithmetic number, because the mean of its divisors is an integer number (55632).

2^1283555 is an apocalyptic number.

1283555 is a deficient number, since it is larger than the sum of its proper divisors (719197).

1283555 is a wasteful number, since it uses less digits than its factorization.

1283555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 56 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 1283555 is about 1132.9408634170. The cubic root of 1283555 is about 108.6771300265.

The spelling of 1283555 in words is "one million, two hundred eighty-three thousand, five hundred fifty-five".