12261072 has 40 divisors (see below), whose sum is σ = 31895776. Its totient is φ = 4058496.

The previous prime is 12261059. The next prime is 12261077. The reversal of 12261072 is 27016221.

12261072 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12261077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6723 + ... + 8349.

Almost surely, 2^12261072 is an apocalyptic number.

12261072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12261072 is an abundant number, since it is smaller than the sum of its proper divisors (19634704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12261072 is a wasteful number, since it uses less digits than its factorization.

12261072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1789 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12261072 is about 3501.5813570443. The cubic root of 12261072 is about 230.5912450506.

Adding to 12261072 its reverse (27016221), we get a palindrome (39277293).

The spelling of 12261072 in words is "twelve million, two hundred sixty-one thousand, seventy-two".