12552161 has 4 divisors (see below), whose sum is σ = 12729024. Its totient is φ = 12375300.

The previous prime is 12552151. The next prime is 12552167. The reversal of 12552161 is 16125521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12552161 - 2⁶ = 12552097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12552167) 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, 88325 + ... + 88466.

It is an arithmetic number, because the mean of its divisors is an integer number (3182256).

Almost surely, 2^12552161 is an apocalyptic number.

It is an amenable number.

12552161 is a deficient number, since it is larger than the sum of its proper divisors (176863).

12552161 is an equidigital number, since it uses as much as digits as its factorization.

12552161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176862.

The product of its digits is 600, while the sum is 23.

The square root of 12552161 is about 3542.9029058104. The cubic root of 12552161 is about 232.4018069186.

Adding to 12552161 its reverse (16125521), we get a palindrome (28677682).

The spelling of 12552161 in words is "twelve million, five hundred fifty-two thousand, one hundred sixty-one".