12770205 has 16 divisors (see below), whose sum is σ = 23351424. Its totient is φ = 5837760.

The previous prime is 12770203. The next prime is 12770209. The reversal of 12770205 is 50207721.

It is not a de Polignac number, because 12770205 - 2¹ = 12770203 is a prime.

It is a super-3 number, since 3×12770205³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60706 + ... + 60915.

It is an arithmetic number, because the mean of its divisors is an integer number (1459464).

Almost surely, 2^12770205 is an apocalyptic number.

12770205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12770205 is a deficient number, since it is larger than the sum of its proper divisors (10581219).

12770205 is a wasteful number, since it uses less digits than its factorization.

12770205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121636.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 12770205 is about 3573.5423601799. The cubic root of 12770205 is about 233.7397757355.

Adding to 12770205 its reverse (50207721), we get a palindrome (62977926).

The spelling of 12770205 in words is "twelve million, seven hundred seventy thousand, two hundred five".