12730177 has 4 divisors (see below), whose sum is σ = 12823236. Its totient is φ = 12637120.

The previous prime is 12730169. The next prime is 12730283. The reversal of 12730177 is 77103721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2483776 + 10246401 = 1576^2 + 3201^2 .

It is a cyclic number.

It is not a de Polignac number, because 12730177 - 2³ = 12730169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12730777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46324 + ... + 46597.

It is an arithmetic number, because the mean of its divisors is an integer number (3205809).

Almost surely, 2^12730177 is an apocalyptic number.

It is an amenable number.

12730177 is a deficient number, since it is larger than the sum of its proper divisors (93059).

12730177 is an equidigital number, since it uses as much as digits as its factorization.

12730177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93058.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 12730177 is about 3567.9373593156. The cubic root of 12730177 is about 233.4953022820.

Adding to 12730177 its reverse (77103721), we get a palindrome (89833898).

The spelling of 12730177 in words is "twelve million, seven hundred thirty thousand, one hundred seventy-seven".