12151712 has 24 divisors (see below), whose sum is σ = 24006276. Its totient is φ = 6054912.

The previous prime is 12151687. The next prime is 12151717. The reversal of 12151712 is 21715121.

It is a happy number.

12151712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12138256 + 13456 = 3484^2 + 116^2 .

It is not an unprimeable number, because it can be changed into a prime (12151717) 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, 13418 + ... + 14294.

Almost surely, 2^12151712 is an apocalyptic number.

It is an amenable number.

12151712 is a deficient number, since it is larger than the sum of its proper divisors (11854564).

12151712 is an equidigital number, since it uses as much as digits as its factorization.

12151712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1312 counting only the distinct ones).

The product of its digits is 140, while the sum is 20.

The square root of 12151712 is about 3485.9305787695. The cubic root of 12151712 is about 229.9036269208.

Adding to 12151712 its reverse (21715121), we get a palindrome (33866833).

It can be divided in two parts, 1215171 and 2, that multiplied together give a palindrome (2430342).

The spelling of 12151712 in words is "twelve million, one hundred fifty-one thousand, seven hundred twelve".