12902229 has 6 divisors (see below), whose sum is σ = 18636566. Its totient is φ = 8601480.

The previous prime is 12902203. The next prime is 12902237. The reversal of 12902229 is 92220921.

It can be written as a sum of positive squares in only one way, i.e., 8910225 + 3992004 = 2985^2 + 1998^2 .

It is not a de Polignac number, because 12902229 - 2⁹ = 12901717 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 (12907229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716782 + ... + 716799.

Almost surely, 2^12902229 is an apocalyptic number.

It is an amenable number.

12902229 is a deficient number, since it is larger than the sum of its proper divisors (5734337).

12902229 is a wasteful number, since it uses less digits than its factorization.

12902229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433587 (or 1433584 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12902229 is about 3591.9672882698. The cubic root of 12902229 is about 234.5425172535.

It can be divided in two parts, 12902 and 229, that added together give a palindrome (13131).

The spelling of 12902229 in words is "twelve million, nine hundred two thousand, two hundred twenty-nine".