12680135 has 16 divisors (see below), whose sum is σ = 16461984. Its totient is φ = 9320832.

The previous prime is 12680117. The next prime is 12680137. The reversal of 12680135 is 53108621.

It is a cyclic number.

It is not a de Polignac number, because 12680135 - 2⁶ = 12680071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12680137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23984 + ... + 24506.

It is an arithmetic number, because the mean of its divisors is an integer number (1028874).

Almost surely, 2^12680135 is an apocalyptic number.

12680135 is a deficient number, since it is larger than the sum of its proper divisors (3781849).

12680135 is a wasteful number, since it uses less digits than its factorization.

12680135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12680135 is about 3560.9177187910. The cubic root of 12680135 is about 233.1889458183.

Adding to 12680135 its reverse (53108621), we get a palindrome (65788756).

The spelling of 12680135 in words is "twelve million, six hundred eighty thousand, one hundred thirty-five".