1283564 has 12 divisors (see below), whose sum is σ = 2364600. Its totient is φ = 607968.

The previous prime is 1283563. The next prime is 1283573. The reversal of 1283564 is 4653821.

It is not an unprimeable number, because it can be changed into a prime (1283563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8369 + ... + 8520.

It is an arithmetic number, because the mean of its divisors is an integer number (197050).

2^1283564 is an apocalyptic number.

It is an amenable number.

1283564 is a deficient number, since it is larger than the sum of its proper divisors (1081036).

1283564 is a wasteful number, since it uses less digits than its factorization.

1283564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16912 (or 16910 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 1283564 is about 1132.9448353737. The cubic root of 1283564 is about 108.6773840325.

The spelling of 1283564 in words is "one million, two hundred eighty-three thousand, five hundred sixty-four".