1283533 has 4 divisors (see below), whose sum is σ = 1287900. Its totient is φ = 1279168.

The previous prime is 1283521. The next prime is 1283537. The reversal of 1283533 is 3353821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 1108809 = 418^2 + 1053^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283533 - 2⁹ = 1283021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1283498 and 1283507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283537) 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, 1708 + ... + 2341.

It is an arithmetic number, because the mean of its divisors is an integer number (321975).

2^1283533 is an apocalyptic number.

It is an amenable number.

1283533 is a deficient number, since it is larger than the sum of its proper divisors (4367).

1283533 is an equidigital number, since it uses as much as digits as its factorization.

1283533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366.

The product of its digits is 2160, while the sum is 25.

The square root of 1283533 is about 1132.9311541307. The cubic root of 1283533 is about 108.6765091181.

The spelling of 1283533 in words is "one million, two hundred eighty-three thousand, five hundred thirty-three".