12409953 has 4 divisors (see below), whose sum is σ = 16546608. Its totient is φ = 8273300.

The previous prime is 12409939. The next prime is 12409979. The reversal of 12409953 is 35990421.

12409953 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 12409953 - 2⁸ = 12409697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12409913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2068323 + ... + 2068328.

It is an arithmetic number, because the mean of its divisors is an integer number (4136652).

Almost surely, 2^12409953 is an apocalyptic number.

It is an amenable number.

12409953 is a deficient number, since it is larger than the sum of its proper divisors (4136655).

12409953 is an equidigital number, since it uses as much as digits as its factorization.

12409953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136654.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 12409953 is about 3522.7763198932. The cubic root of 12409953 is about 231.5208165922.

It can be divided in two parts, 12 and 409953, that added together give a triangular number (409965 = T₉₀₅).

The spelling of 12409953 in words is "twelve million, four hundred nine thousand, nine hundred fifty-three".