12653403 has 8 divisors (see below), whose sum is σ = 19281408. Its totient is φ = 7230504.

The previous prime is 12653357. The next prime is 12653429. The reversal of 12653403 is 30435621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12653403 - 2⁹ = 12652891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12653203) 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 7 ways as a sum of consecutive naturals, for example, 301251 + ... + 301292.

It is an arithmetic number, because the mean of its divisors is an integer number (2410176).

Almost surely, 2^12653403 is an apocalyptic number.

12653403 is a deficient number, since it is larger than the sum of its proper divisors (6628005).

12653403 is an equidigital number, since it uses as much as digits as its factorization.

12653403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602553.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 12653403 is about 3557.1622116513. The cubic root of 12653403 is about 233.0249624812.

The spelling of 12653403 in words is "twelve million, six hundred fifty-three thousand, four hundred three".