12801403 has 4 divisors (see below), whose sum is σ = 12808840. Its totient is φ = 12793968.

The previous prime is 12801377. The next prime is 12801413. The reversal of 12801403 is 30410821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12801403 - 2⁹ = 12800891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12801413) 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, 343 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (3202210).

Almost surely, 2^12801403 is an apocalyptic number.

12801403 is a deficient number, since it is larger than the sum of its proper divisors (7437).

12801403 is an equidigital number, since it uses as much as digits as its factorization.

12801403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7436.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12801403 is about 3577.9048338378. The cubic root of 12801403 is about 233.9299654050.

The spelling of 12801403 in words is "twelve million, eight hundred one thousand, four hundred three".