12740205 has 8 divisors (see below), whose sum is σ = 20384352. Its totient is φ = 6794768.

The previous prime is 12740201. The next prime is 12740209. The reversal of 12740205 is 50204721.

12740205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12740201) and next prime (12740209).

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

It is a cyclic number.

It is not a de Polignac number, because 12740205 - 2² = 12740201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424659 + ... + 424688.

It is an arithmetic number, because the mean of its divisors is an integer number (2548044).

Almost surely, 2^12740205 is an apocalyptic number.

12740205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12740205 is a deficient number, since it is larger than the sum of its proper divisors (7644147).

12740205 is an equidigital number, since it uses as much as digits as its factorization.

12740205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849355.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12740205 is about 3569.3423764049. The cubic root of 12740205 is about 233.5565969610.

Adding to 12740205 its reverse (50204721), we get a palindrome (62944926).

The spelling of 12740205 in words is "twelve million, seven hundred forty thousand, two hundred five".