12971403 has 12 divisors (see below), whose sum is σ = 18804240. Its totient is φ = 8616336.

The previous prime is 12971369. The next prime is 12971411. The reversal of 12971403 is 30417921.

It is not a de Polignac number, because 12971403 - 2⁶ = 12971339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12971603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (1567020).

Almost surely, 2^12971403 is an apocalyptic number.

12971403 is a deficient number, since it is larger than the sum of its proper divisors (5832837).

12971403 is a wasteful number, since it uses less digits than its factorization.

12971403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12971403 is about 3601.5834017832. The cubic root of 12971403 is about 234.9609290711.

The spelling of 12971403 in words is "twelve million, nine hundred seventy-one thousand, four hundred three".