12981486 has 16 divisors (see below), whose sum is σ = 29672064. Its totient is φ = 3708984.

The previous prime is 12981481. The next prime is 12981491. The reversal of 12981486 is 68418921.

12981486 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12981481) and next prime (12981491).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12981481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154500 + ... + 154583.

It is an arithmetic number, because the mean of its divisors is an integer number (1854504).

Almost surely, 2^12981486 is an apocalyptic number.

12981486 is an abundant number, since it is smaller than the sum of its proper divisors (16690578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12981486 is a wasteful number, since it uses less digits than its factorization.

12981486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309095.

The product of its digits is 27648, while the sum is 39.

The square root of 12981486 is about 3602.9829308505. The cubic root of 12981486 is about 235.0217936631.

The spelling of 12981486 in words is "twelve million, nine hundred eighty-one thousand, four hundred eighty-six".