27135612 has 54 divisors (see below), whose sum is σ = 79796808. Its totient is φ = 7752528.

The previous prime is 27135611. The next prime is 27135637. The reversal of 27135612 is 21653172.

It is a happy number.

It is a super-2 number, since 2×27135612² = 1472682877229088, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27135611) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5928 + ... + 9455.

Almost surely, 2^27135612 is an apocalyptic number.

It is an amenable number.

27135612 is an abundant number, since it is smaller than the sum of its proper divisors (52661196).

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

27135612 is a wasteful number, since it uses less digits than its factorization.

27135612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15407 (or 15395 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 27135612 is about 5209.1853489773. The cubic root of 27135612 is about 300.5014280993.

Adding to 27135612 its reverse (21653172), we get a palindrome (48788784).

The spelling of 27135612 in words is "twenty-seven million, one hundred thirty-five thousand, six hundred twelve".