27150012 has 96 divisors (see below), whose sum is σ = 75398400. Its totient is φ = 8424000.

The previous prime is 27150007. The next prime is 27150023. The reversal of 27150012 is 21005172.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207187 + ... + 207317.

It is an arithmetic number, because the mean of its divisors is an integer number (785400).

Almost surely, 2^27150012 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 27150012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37699200).

27150012 is an abundant number, since it is smaller than the sum of its proper divisors (48248388).

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

27150012 is a wasteful number, since it uses less digits than its factorization.

27150012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 27150012 is about 5210.5673395514. The cubic root of 27150012 is about 300.5545741932.

Adding to 27150012 its reverse (21005172), we get a palindrome (48155184).

The spelling of 27150012 in words is "twenty-seven million, one hundred fifty thousand, twelve".