1232531604 has 72 divisors (see below), whose sum is σ = 3230223360. Its totient is φ = 395841600.

The previous prime is 1232531563. The next prime is 1232531617. The reversal of 1232531604 is 4061352321.

1232531604 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 53 + 1 + 604 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264414 + ... + 269034.

Almost surely, 2^1232531604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232531604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615111680).

1232531604 is an abundant number, since it is smaller than the sum of its proper divisors (1997691756).

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

1232531604 is a wasteful number, since it uses less digits than its factorization.

1232531604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901 (or 4896 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1232531604 is about 35107.4294701278. The cubic root of 1232531604 is about 1072.1758513125.

Adding to 1232531604 its reverse (4061352321), we get a palindrome (5293883925).

The spelling of 1232531604 in words is "one billion, two hundred thirty-two million, five hundred thirty-one thousand, six hundred four".