12054581 has 16 divisors (see below), whose sum is σ = 15914880. Its totient is φ = 8839680.

The previous prime is 12054571. The next prime is 12054589. The reversal of 12054581 is 18545021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12054581 is a prime.

It is a super-2 number, since 2×12054581² = 290625846171122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12054581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054589) 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, 3296 + ... + 5913.

It is an arithmetic number, because the mean of its divisors is an integer number (994680).

Almost surely, 2^12054581 is an apocalyptic number.

12054581 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12054581 is a deficient number, since it is larger than the sum of its proper divisors (3860299).

12054581 is a wasteful number, since it uses less digits than its factorization.

12054581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9244.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 12054581 is about 3471.9707660060. The cubic root of 12054581 is about 229.2894327267.

The spelling of 12054581 in words is "twelve million, fifty-four thousand, five hundred eighty-one".