12731088 has 20 divisors (see below), whose sum is σ = 32888768. Its totient is φ = 4243680.

The previous prime is 12731063. The next prime is 12731093. The reversal of 12731088 is 88013721.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132568 + ... + 132663.

Almost surely, 2^12731088 is an apocalyptic number.

It is an amenable number.

12731088 is an abundant number, since it is smaller than the sum of its proper divisors (20157680).

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

12731088 is a wasteful number, since it uses less digits than its factorization.

12731088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265242 (or 265236 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 12731088 is about 3568.0650218291. The cubic root of 12731088 is about 233.5008719649.

The spelling of 12731088 in words is "twelve million, seven hundred thirty-one thousand, eighty-eight".