12126081 has 8 divisors (see below), whose sum is σ = 17637984. Its totient is φ = 7349120.

The previous prime is 12126077. The next prime is 12126091. The reversal of 12126081 is 18062121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12126081 - 2² = 12126077 is a prime.

It is a super-2 number, since 2×12126081² = 294083680837122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12126001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183696 + ... + 183761.

It is an arithmetic number, because the mean of its divisors is an integer number (2204748).

Almost surely, 2^12126081 is an apocalyptic number.

12126081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12126081 is a deficient number, since it is larger than the sum of its proper divisors (5511903).

12126081 is a wasteful number, since it uses less digits than its factorization.

12126081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367471.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 12126081 is about 3482.2522883904. The cubic root of 12126081 is about 229.7418717225.

The spelling of 12126081 in words is "twelve million, one hundred twenty-six thousand, eighty-one".