12735136 has 12 divisors (see below), whose sum is σ = 25072362. Its totient is φ = 6367552.

The previous prime is 12735131. The next prime is 12735137. The reversal of 12735136 is 63153721.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 90000 = 3556^2 + 300^2 .

It is not an unprimeable number, because it can be changed into a prime (12735131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198955 + ... + 199018.

Almost surely, 2^12735136 is an apocalyptic number.

12735136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12735136 is a deficient number, since it is larger than the sum of its proper divisors (12337226).

12735136 is an equidigital number, since it uses as much as digits as its factorization.

12735136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397983 (or 397975 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 12735136 is about 3568.6322309815. The cubic root of 12735136 is about 233.5256174637.

Adding to 12735136 its reverse (63153721), we get a palindrome (75888857).

The spelling of 12735136 in words is "twelve million, seven hundred thirty-five thousand, one hundred thirty-six".