12642273 has 12 divisors (see below), whose sum is σ = 20869888. Its totient is φ = 7224120.

The previous prime is 12642263. The next prime is 12642281. The reversal of 12642273 is 37224621.

12642273 is a `hidden beast` number, since 12 + 642 + 2 + 7 + 3 = 666.

12642273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12642273 - 2¹⁰ = 12641249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12642263) 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, 100273 + ... + 100398.

Almost surely, 2^12642273 is an apocalyptic number.

It is an amenable number.

12642273 is a deficient number, since it is larger than the sum of its proper divisors (8227615).

12642273 is a wasteful number, since it uses less digits than its factorization.

12642273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200684 (or 200681 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 12642273 is about 3555.5974181563. The cubic root of 12642273 is about 232.9566191103.

Adding to 12642273 its reverse (37224621), we get a palindrome (49866894).

The spelling of 12642273 in words is "twelve million, six hundred forty-two thousand, two hundred seventy-three".