12261152 has 18 divisors (see below), whose sum is σ = 24178203. Its totient is φ = 6120672.

The previous prime is 12261133. The next prime is 12261157. The reversal of 12261152 is 25116221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 6130576 + 6130576 = 2476^2 + 2476^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2476.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12261157) 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 2 ways as a sum of consecutive naturals, for example, 19499 + ... + 20117.

Almost surely, 2^12261152 is an apocalyptic number.

It is an amenable number.

12261152 is a deficient number, since it is larger than the sum of its proper divisors (11917051).

12261152 is an frugal number, since it uses more digits than its factorization.

12261152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 621 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 12261152 is about 3501.5927804358. The cubic root of 12261152 is about 230.5917465635.

Adding to 12261152 its reverse (25116221), we get a palindrome (37377373).

The spelling of 12261152 in words is "twelve million, two hundred sixty-one thousand, one hundred fifty-two".