12611612 has 24 divisors (see below), whose sum is σ = 23879856. Its totient is φ = 5793408.

The previous prime is 12611597. The next prime is 12611617. The reversal of 12611612 is 21611621.

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 (12611617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14288 + ... + 15144.

It is an arithmetic number, because the mean of its divisors is an integer number (994994).

Almost surely, 2^12611612 is an apocalyptic number.

It is an amenable number.

12611612 is a deficient number, since it is larger than the sum of its proper divisors (11268244).

12611612 is a wasteful number, since it uses less digits than its factorization.

12611612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1155 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 12611612 is about 3551.2831483845. The cubic root of 12611612 is about 232.7681386311.

Subtracting 12611612 from its reverse (21611621), we obtain a palindrome (9000009).

The spelling of 12611612 in words is "twelve million, six hundred eleven thousand, six hundred twelve".