12774105 has 20 divisors (see below), whose sum is σ = 22899492. Its totient is φ = 6812640.

The previous prime is 12774101. The next prime is 12774119. The reversal of 12774105 is 50147721.

It can be written as a sum of positive squares in 2 ways, for example, as 1565001 + 11209104 = 1251^2 + 3348^2 .

It is not a de Polignac number, because 12774105 - 2² = 12774101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12774101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15366 + ... + 16175.

Almost surely, 2^12774105 is an apocalyptic number.

12774105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12774105 is a deficient number, since it is larger than the sum of its proper divisors (10125387).

12774105 is an equidigital number, since it uses as much as digits as its factorization.

12774105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31558 (or 31549 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 12774105 is about 3574.0879955591. The cubic root of 12774105 is about 233.7635678971.

The spelling of 12774105 in words is "twelve million, seven hundred seventy-four thousand, one hundred five".