12959161 has 4 divisors (see below), whose sum is σ = 12966372. Its totient is φ = 12951952.

The previous prime is 12959153. The next prime is 12959183. The reversal of 12959161 is 16195921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5669161 + 7290000 = 2381^2 + 2700^2 .

It is a cyclic number.

It is not a de Polignac number, because 12959161 - 2³ = 12959153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12959131) 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, 1515 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (3241593).

Almost surely, 2^12959161 is an apocalyptic number.

It is an amenable number.

12959161 is a deficient number, since it is larger than the sum of its proper divisors (7211).

12959161 is an equidigital number, since it uses as much as digits as its factorization.

12959161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7210.

The product of its digits is 4860, while the sum is 34.

The square root of 12959161 is about 3599.8834703362. The cubic root of 12959161 is about 234.8869895738.

The spelling of 12959161 in words is "twelve million, nine hundred fifty-nine thousand, one hundred sixty-one".