12271903 has 12 divisors (see below), whose sum is σ = 14897520. Its totient is φ = 10060512.

The previous prime is 12271879. The next prime is 12271951. The reversal of 12271903 is 30917221.

It is not a de Polignac number, because 12271903 - 2⁵ = 12271871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271003) 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 11 ways as a sum of consecutive naturals, for example, 4318 + ... + 6571.

It is an arithmetic number, because the mean of its divisors is an integer number (1241460).

Almost surely, 2^12271903 is an apocalyptic number.

12271903 is a deficient number, since it is larger than the sum of its proper divisors (2625617).

12271903 is a wasteful number, since it uses less digits than its factorization.

12271903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10926 (or 10919 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12271903 is about 3503.1276025860. The cubic root of 12271903 is about 230.6591238006.

The spelling of 12271903 in words is "twelve million, two hundred seventy-one thousand, nine hundred three".