12061312 has 16 divisors (see below), whose sum is σ = 24028650. Its totient is φ = 6030592.

The previous prime is 12061307. The next prime is 12061321. The reversal of 12061312 is 21316021.

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 3904576 = 2856^2 + 1976^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×12061312² = 290950494322688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46987 + ... + 47242.

Almost surely, 2^12061312 is an apocalyptic number.

It is an amenable number.

12061312 is a deficient number, since it is larger than the sum of its proper divisors (11967338).

12061312 is an frugal number, since it uses more digits than its factorization.

12061312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94243 (or 94231 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12061312 is about 3472.9399649288. The cubic root of 12061312 is about 229.3321014296.

Adding to 12061312 its reverse (21316021), we get a palindrome (33377333).

The spelling of 12061312 in words is "twelve million, sixty-one thousand, three hundred twelve".