12305953 has 4 divisors (see below), whose sum is σ = 13424688. Its totient is φ = 11187220.

The previous prime is 12305921. The next prime is 12305981. The reversal of 12305953 is 35950321.

12305953 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: 35950321 = 11 ⋅3268211.

It is not a de Polignac number, because 12305953 - 2⁵ = 12305921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12305653) 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, 559351 + ... + 559372.

It is an arithmetic number, because the mean of its divisors is an integer number (3356172).

Almost surely, 2^12305953 is an apocalyptic number.

It is an amenable number.

12305953 is a deficient number, since it is larger than the sum of its proper divisors (1118735).

12305953 is a wasteful number, since it uses less digits than its factorization.

12305953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118734.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 12305953 is about 3507.9841789837. The cubic root of 12305953 is about 230.8722581018.

The spelling of 12305953 in words is "twelve million, three hundred five thousand, nine hundred fifty-three".