12671534 has 4 divisors (see below), whose sum is σ = 19007304. Its totient is φ = 6335766.

The previous prime is 12671531. The next prime is 12671543. The reversal of 12671534 is 43517621.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12671497 and 12671506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671531) 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 as a sum of consecutive naturals, namely, 3167882 + ... + 3167885.

It is an arithmetic number, because the mean of its divisors is an integer number (4751826).

Almost surely, 2^12671534 is an apocalyptic number.

12671534 is a deficient number, since it is larger than the sum of its proper divisors (6335770).

12671534 is an equidigital number, since it uses as much as digits as its factorization.

12671534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335769.

The product of its digits is 5040, while the sum is 29.

The square root of 12671534 is about 3559.7098196342. The cubic root of 12671534 is about 233.1362094771.

The spelling of 12671534 in words is "twelve million, six hundred seventy-one thousand, five hundred thirty-four".