12937553 has 4 divisors (see below), whose sum is σ = 12945408. Its totient is φ = 12929700.

The previous prime is 12937543. The next prime is 12937597. The reversal of 12937553 is 35573921.

It is a happy 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35573921 = 181 ⋅196541.

It is a cyclic number.

It is not a de Polignac number, because 12937553 - 2⁶ = 12937489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12937543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (3236352).

Almost surely, 2^12937553 is an apocalyptic number.

It is an amenable number.

12937553 is a deficient number, since it is larger than the sum of its proper divisors (7855).

12937553 is an equidigital number, since it uses as much as digits as its factorization.

12937553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7854.

The product of its digits is 28350, while the sum is 35.

The square root of 12937553 is about 3596.8810099863. The cubic root of 12937553 is about 234.7563673933.

The spelling of 12937553 in words is "twelve million, nine hundred thirty-seven thousand, five hundred fifty-three".