12018081 has 8 divisors (see below), whose sum is σ = 16457344. Its totient is φ = 7795440.

The previous prime is 12018059. The next prime is 12018101. The reversal of 12018081 is 18081021.

12018081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12018081 - 2⁷ = 12017953 is a prime.

It is a super-2 number, since 2×12018081² = 288868541845122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12018001) 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, 54025 + ... + 54246.

It is an arithmetic number, because the mean of its divisors is an integer number (2057168).

Almost surely, 2^12018081 is an apocalyptic number.

It is an amenable number.

12018081 is a deficient number, since it is larger than the sum of its proper divisors (4439263).

12018081 is a wasteful number, since it uses less digits than its factorization.

12018081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108311.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 12018081 is about 3466.7104003652. The cubic root of 12018081 is about 229.0577773526.

The spelling of 12018081 in words is "twelve million, eighteen thousand, eighty-one".