12612136 has 8 divisors (see below), whose sum is σ = 23647770. Its totient is φ = 6306064.

The previous prime is 12612109. The next prime is 12612139. The reversal of 12612136 is 63121621.

It can be written as a sum of positive squares in only one way, i.e., 8964036 + 3648100 = 2994^2 + 1910^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12612139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788251 + ... + 788266.

Almost surely, 2^12612136 is an apocalyptic number.

It is an amenable number.

12612136 is a deficient number, since it is larger than the sum of its proper divisors (11035634).

12612136 is a wasteful number, since it uses less digits than its factorization.

12612136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576523 (or 1576519 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 12612136 is about 3551.3569237687. The cubic root of 12612136 is about 232.7713623484.

Adding to 12612136 its reverse (63121621), we get a palindrome (75733757).

The spelling of 12612136 in words is "twelve million, six hundred twelve thousand, one hundred thirty-six".