12955409 has 8 divisors (see below), whose sum is σ = 13284480. Its totient is φ = 12628656.

The previous prime is 12955399. The next prime is 12955421. The reversal of 12955409 is 90455921.

12955409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12955409 - 2⁸ = 12955153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12955109) 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, 17162 + ... + 17900.

It is an arithmetic number, because the mean of its divisors is an integer number (1660560).

Almost surely, 2^12955409 is an apocalyptic number.

It is an amenable number.

12955409 is a deficient number, since it is larger than the sum of its proper divisors (329071).

12955409 is an equidigital number, since it uses as much as digits as its factorization.

12955409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 12955409 is about 3599.3623046312. The cubic root of 12955409 is about 234.8643188404.

The spelling of 12955409 in words is "twelve million, nine hundred fifty-five thousand, four hundred nine".