12161652 has 12 divisors (see below), whose sum is σ = 28377216. Its totient is φ = 4053880.

The previous prime is 12161651. The next prime is 12161663. The reversal of 12161652 is 25616121.

12161652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161651) 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, 506724 + ... + 506747.

It is an arithmetic number, because the mean of its divisors is an integer number (2364768).

Almost surely, 2^12161652 is an apocalyptic number.

12161652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12161652 is an abundant number, since it is smaller than the sum of its proper divisors (16215564).

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

12161652 is a wasteful number, since it uses less digits than its factorization.

12161652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013478 (or 1013476 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 12161652 is about 3487.3560185332. The cubic root of 12161652 is about 229.9662962586.

Adding to 12161652 its reverse (25616121), we get a palindrome (37777773).

The spelling of 12161652 in words is "twelve million, one hundred sixty-one thousand, six hundred fifty-two".