12618136 has 8 divisors (see below), whose sum is σ = 23659020. Its totient is φ = 6309064.

The previous prime is 12618127. The next prime is 12618157. The reversal of 12618136 is 63181621.

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

It is a super-2 number, since 2×12618136² = 318434712228992, 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 as a sum of consecutive naturals, namely, 788626 + ... + 788641.

Almost surely, 2^12618136 is an apocalyptic number.

It is an amenable number.

12618136 is a deficient number, since it is larger than the sum of its proper divisors (11040884).

12618136 is a wasteful number, since it uses less digits than its factorization.

12618136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577273 (or 1577269 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 12618136 is about 3552.2015708571. The cubic root of 12618136 is about 232.8082687789.

Adding to 12618136 its reverse (63181621), we get a palindrome (75799757).

The spelling of 12618136 in words is "twelve million, six hundred eighteen thousand, one hundred thirty-six".