12531486 has 48 divisors (see below), whose sum is σ = 28287504. Its totient is φ = 3696000.

The previous prime is 12531473. The next prime is 12531511. The reversal of 12531486 is 68413521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29556 + ... + 29976.

It is an arithmetic number, because the mean of its divisors is an integer number (589323).

Almost surely, 2^12531486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12531486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14143752).

12531486 is an abundant number, since it is smaller than the sum of its proper divisors (15756018).

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

12531486 is a wasteful number, since it uses less digits than its factorization.

12531486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 478 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 12531486 is about 3539.9838982685. The cubic root of 12531486 is about 232.2741383875.

The spelling of 12531486 in words is "twelve million, five hundred thirty-one thousand, four hundred eighty-six".