1283522 has 4 divisors (see below), whose sum is σ = 1925286. Its totient is φ = 641760.

The previous prime is 1283521. The next prime is 1283537. The reversal of 1283522 is 2253821.

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

It can be written as a sum of positive squares in only one way, i.e., 1042441 + 241081 = 1021^2 + 491^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320879 + ... + 320882.

2^1283522 is an apocalyptic number.

1283522 is a deficient number, since it is larger than the sum of its proper divisors (641764).

1283522 is an equidigital number, since it uses as much as digits as its factorization.

1283522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641763.

The product of its digits is 960, while the sum is 23.

The square root of 1283522 is about 1132.9262994564. The cubic root of 1283522 is about 108.6761986612.

Subtracting 1283522 from its reverse (2253821), we obtain a cube (970299 = 99³).

The spelling of 1283522 in words is "one million, two hundred eighty-three thousand, five hundred twenty-two".