12335981 has 16 divisors (see below), whose sum is σ = 14824704. Its totient is φ = 10036224.

The previous prime is 12335977. The next prime is 12335989. The reversal of 12335981 is 18953321.

It is a cyclic number.

It is not a de Polignac number, because 12335981 - 2² = 12335977 is a prime.

It is a super-2 number, since 2×12335981² = 304352854464722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12335989) 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, 30875 + ... + 31271.

It is an arithmetic number, because the mean of its divisors is an integer number (926544).

Almost surely, 2^12335981 is an apocalyptic number.

It is an amenable number.

12335981 is a deficient number, since it is larger than the sum of its proper divisors (2488723).

12335981 is a wasteful number, since it uses less digits than its factorization.

12335981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620.

The product of its digits is 6480, while the sum is 32.

The square root of 12335981 is about 3512.2615221535. The cubic root of 12335981 is about 231.0598908944.

The spelling of 12335981 in words is "twelve million, three hundred thirty-five thousand, nine hundred eighty-one".