12956161 has 8 divisors (see below), whose sum is σ = 13313664. Its totient is φ = 12602160.

The previous prime is 12956149. The next prime is 12956183. The reversal of 12956161 is 16165921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12956161 - 2¹³ = 12947969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12956101) 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, 7746 + ... + 9268.

It is an arithmetic number, because the mean of its divisors is an integer number (1664208).

Almost surely, 2^12956161 is an apocalyptic number.

It is an amenable number.

12956161 is a deficient number, since it is larger than the sum of its proper divisors (357503).

12956161 is a wasteful number, since it uses less digits than its factorization.

12956161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751.

The product of its digits is 3240, while the sum is 31.

The square root of 12956161 is about 3599.4667660641. The cubic root of 12956161 is about 234.8688630055.

The spelling of 12956161 in words is "twelve million, nine hundred fifty-six thousand, one hundred sixty-one".