27130012 has 48 divisors (see below), whose sum is σ = 59292352. Its totient is φ = 10575360.

The previous prime is 27130007. The next prime is 27130021. The reversal of 27130012 is 21003172.

It is a happy number.

It is a super-2 number, since 2×27130012² = 1472075102240288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26062 + ... + 27082.

Almost surely, 2^27130012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27130012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29646176).

27130012 is an abundant number, since it is smaller than the sum of its proper divisors (32162340).

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

27130012 is a wasteful number, since it uses less digits than its factorization.

27130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 27130012 is about 5208.6478091727. The cubic root of 27130012 is about 300.4807550962.

Adding to 27130012 its reverse (21003172), we get a palindrome (48133184).

The spelling of 27130012 in words is "twenty-seven million, one hundred thirty thousand, twelve".