1233522 has 32 divisors (see below), whose sum is σ = 2799360. Its totient is φ = 402480.

The previous prime is 1233509. The next prime is 1233523. The reversal of 1233522 is 2253321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 1 + 2⁷ + 3¹¹ + 3¹² + 5 + 2⁹ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 1233495 and 1233504.

It is not an unprimeable number, because it can be changed into a prime (1233523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647 + ... + 3077.

It is an arithmetic number, because the mean of its divisors is an integer number (87480).

2^1233522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1233522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399680).

1233522 is an abundant number, since it is smaller than the sum of its proper divisors (1565838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1233522 is a wasteful number, since it uses less digits than its factorization.

1233522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 489 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 1233522 is about 1110.6403558308. The cubic root of 1233522 is about 107.2462955344.

Adding to 1233522 its reverse (2253321), we get a palindrome (3486843).

The spelling of 1233522 in words is "one million, two hundred thirty-three thousand, five hundred twenty-two".