12677121 has 32 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 7822080.

The previous prime is 12677111. The next prime is 12677141. The reversal of 12677121 is 12177621.

It is not a de Polignac number, because 12677121 - 2¹⁵ = 12644353 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12677101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32395 + ... + 32783.

It is an arithmetic number, because the mean of its divisors is an integer number (631800).

It is a Proth number, since it is equal to 3095 ⋅ 2¹² + 1 and 3095 < 2¹².

Almost surely, 2^12677121 is an apocalyptic number.

It is an amenable number.

12677121 is a deficient number, since it is larger than the sum of its proper divisors (7540479).

12677121 is a wasteful number, since it uses less digits than its factorization.

12677121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 480 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 12677121 is about 3560.4944881294. The cubic root of 12677121 is about 233.1704684342.

Subtracting from 12677121 its reverse (12177621), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 12677121 in words is "twelve million, six hundred seventy-seven thousand, one hundred twenty-one".