12271893 has 8 divisors (see below), whose sum is σ = 16480800. Its totient is φ = 8122128.

The previous prime is 12271879. The next prime is 12271951. The reversal of 12271893 is 39817221.

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

It is not a de Polignac number, because 12271893 - 2¹³ = 12263701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271873) 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, 14298 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (2060100).

Almost surely, 2^12271893 is an apocalyptic number.

It is an amenable number.

12271893 is a deficient number, since it is larger than the sum of its proper divisors (4208907).

12271893 is a wasteful number, since it uses less digits than its factorization.

12271893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29571.

The product of its digits is 6048, while the sum is 33.

The square root of 12271893 is about 3503.1261752897. The cubic root of 12271893 is about 230.6590611482.

The spelling of 12271893 in words is "twelve million, two hundred seventy-one thousand, eight hundred ninety-three".