12013532 has 12 divisors (see below), whose sum is σ = 21220920. Its totient is φ = 5950416.

The previous prime is 12013531. The next prime is 12013541. The reversal of 12013532 is 23531021.

It is a super-2 number, since 2×12013532² = 288649902230048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12013532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13607 + ... + 14462.

It is an arithmetic number, because the mean of its divisors is an integer number (1768410).

Almost surely, 2^12013532 is an apocalyptic number.

It is an amenable number.

12013532 is a deficient number, since it is larger than the sum of its proper divisors (9207388).

12013532 is a wasteful number, since it uses less digits than its factorization.

12013532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28180 (or 28178 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 12013532 is about 3466.0542407758. The cubic root of 12013532 is about 229.0288732560.

Adding to 12013532 its reverse (23531021), we get a palindrome (35544553).

The spelling of 12013532 in words is "twelve million, thirteen thousand, five hundred thirty-two".