12671955 has 24 divisors (see below), whose sum is σ = 23122320. Its totient is φ = 6402240.

The previous prime is 12671951. The next prime is 12671959. The reversal of 12671955 is 55917621.

It is an interprime number because it is at equal distance from previous prime (12671951) and next prime (12671959).

It is not a de Polignac number, because 12671955 - 2² = 12671951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671951) 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 23 ways as a sum of consecutive naturals, for example, 6556 + ... + 8265.

It is an arithmetic number, because the mean of its divisors is an integer number (963430).

Almost surely, 2^12671955 is an apocalyptic number.

12671955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12671955 is a deficient number, since it is larger than the sum of its proper divisors (10450365).

12671955 is a wasteful number, since it uses less digits than its factorization.

12671955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14851 (or 14848 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 12671955 is about 3559.7689531766. The cubic root of 12671955 is about 233.1387913602.

The spelling of 12671955 in words is "twelve million, six hundred seventy-one thousand, nine hundred fifty-five".