12620205 has 96 divisors (see below), whose sum is σ = 26417664. Its totient is φ = 5723136.

The previous prime is 12620203. The next prime is 12620207. The reversal of 12620205 is 50202621.

It is an interprime number because it is at equal distance from previous prime (12620203) and next prime (12620207).

It is not a de Polignac number, because 12620205 - 2¹ = 12620203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 268492 + ... + 268538.

It is an arithmetic number, because the mean of its divisors is an integer number (275184).

Almost surely, 2^12620205 is an apocalyptic number.

12620205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12620205 is an abundant number, since it is smaller than the sum of its proper divisors (13797459).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12620205 is a wasteful number, since it uses less digits than its factorization.

12620205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12620205 is about 3552.4927867626. The cubic root of 12620205 is about 232.8209926335.

Adding to 12620205 its reverse (50202621), we get a palindrome (62822826).

The spelling of 12620205 in words is "twelve million, six hundred twenty thousand, two hundred five".