12952909 has 4 divisors (see below), whose sum is σ = 13146304. Its totient is φ = 12759516.

The previous prime is 12952853. The next prime is 12952921. The reversal of 12952909 is 90925921.

12952909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90925921 = 131 ⋅694091.

It is a cyclic number.

It is not a de Polignac number, because 12952909 - 2⁷ = 12952781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12952949) 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, 96597 + ... + 96730.

It is an arithmetic number, because the mean of its divisors is an integer number (3286576).

Almost surely, 2^12952909 is an apocalyptic number.

It is an amenable number.

12952909 is a deficient number, since it is larger than the sum of its proper divisors (193395).

12952909 is an equidigital number, since it uses as much as digits as its factorization.

12952909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193394.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 12952909 is about 3599.0150041365. The cubic root of 12952909 is about 234.8492106446.

It can be divided in two parts, 12952 and 909, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 12952909 in words is "twelve million, nine hundred fifty-two thousand, nine hundred nine".