12412081 has 4 divisors (see below), whose sum is σ = 13540464. Its totient is φ = 11283700.

The previous prime is 12412067. The next prime is 12412109. The reversal of 12412081 is 18021421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18021421 = 11 ⋅1638311.

It is a cyclic number.

It is not a de Polignac number, because 12412081 - 2⁷ = 12411953 is a prime.

It is a super-2 number, since 2×12412081² = 308119509501122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12412021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564175 + ... + 564196.

It is an arithmetic number, because the mean of its divisors is an integer number (3385116).

Almost surely, 2^12412081 is an apocalyptic number.

12412081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12412081 is a deficient number, since it is larger than the sum of its proper divisors (1128383).

12412081 is a wasteful number, since it uses less digits than its factorization.

12412081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128382.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 12412081 is about 3523.0783414508. The cubic root of 12412081 is about 231.5340492005.

The spelling of 12412081 in words is "twelve million, four hundred twelve thousand, eighty-one".