1233530 has 16 divisors (see below), whose sum is σ = 2233224. Its totient is φ = 490560.

The previous prime is 1233527. The next prime is 1233539. The reversal of 1233530 is 353321.

It can be written as a sum of positive squares in 4 ways, for example, as 900601 + 332929 = 949^2 + 577^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1233499 and 1233508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2720 + ... + 3140.

2^1233530 is an apocalyptic number.

1233530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1233530 is a deficient number, since it is larger than the sum of its proper divisors (999694).

1233530 is a wasteful number, since it uses less digits than its factorization.

1233530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 1233530 is about 1110.6439573509. The cubic root of 1233530 is about 107.2465273823.

Adding to 1233530 its reverse (353321), we get a palindrome (1586851).

The spelling of 1233530 in words is "one million, two hundred thirty-three thousand, five hundred thirty".