12013552 has 20 divisors (see below), whose sum is σ = 23333080. Its totient is φ = 5992128.

The previous prime is 12013549. The next prime is 12013553. The reversal of 12013552 is 25531021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013553) 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, 9298 + ... + 10510.

It is an arithmetic number, because the mean of its divisors is an integer number (1166654).

Almost surely, 2^12013552 is an apocalyptic number.

It is an amenable number.

12013552 is a deficient number, since it is larger than the sum of its proper divisors (11319528).

12013552 is a wasteful number, since it uses less digits than its factorization.

12013552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 12013552 is about 3466.0571258997. The cubic root of 12013552 is about 229.0290003508.

Adding to 12013552 its reverse (25531021), we get a palindrome (37544573).

It can be divided in two parts, 1201 and 3552, that added together give a triangular number (4753 = T₉₇).

The spelling of 12013552 in words is "twelve million, thirteen thousand, five hundred fifty-two".