12231532 has 6 divisors (see below), whose sum is σ = 21405188. Its totient is φ = 6115764.

The previous prime is 12231523. The next prime is 12231539. The reversal of 12231532 is 23513221.

It is a super-2 number, since 2×12231532² = 299220750134048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12231539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1528938 + ... + 1528945.

Almost surely, 2^12231532 is an apocalyptic number.

It is an amenable number.

12231532 is a deficient number, since it is larger than the sum of its proper divisors (9173656).

12231532 is a wasteful number, since it uses less digits than its factorization.

12231532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057887 (or 3057885 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 12231532 is about 3497.3607191710. The cubic root of 12231532 is about 230.4059120702.

Adding to 12231532 its reverse (23513221), we get a palindrome (35744753).

The spelling of 12231532 in words is "twelve million, two hundred thirty-one thousand, five hundred thirty-two".