12938953 has 4 divisors (see below), whose sum is σ = 13094928. Its totient is φ = 12782980.

The previous prime is 12938941. The next prime is 12938971. The reversal of 12938953 is 35983921.

It is the 1469-th star number.

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: 35983921 = 1523 ⋅23627.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12938953 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12938923) 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, 77863 + ... + 78028.

It is an arithmetic number, because the mean of its divisors is an integer number (3273732).

Almost surely, 2^12938953 is an apocalyptic number.

It is an amenable number.

12938953 is a deficient number, since it is larger than the sum of its proper divisors (155975).

12938953 is an equidigital number, since it uses as much as digits as its factorization.

12938953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155974.

The product of its digits is 58320, while the sum is 40.

The square root of 12938953 is about 3597.0756177762. The cubic root of 12938953 is about 234.7648349157.

The spelling of 12938953 in words is "twelve million, nine hundred thirty-eight thousand, nine hundred fifty-three".