12558081 has 8 divisors (see below), whose sum is σ = 16783200. Its totient is φ = 8352512.

The previous prime is 12558079. The next prime is 12558083. The reversal of 12558081 is 18085521.

It is an interprime number because it is at equal distance from previous prime (12558079) and next prime (12558083).

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 12558081 - 2¹ = 12558079 is a prime.

It is a super-2 number, since 2×12558081² = 315410796805122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12558083) 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, 3315 + ... + 6008.

It is an arithmetic number, because the mean of its divisors is an integer number (2097900).

Almost surely, 2^12558081 is an apocalyptic number.

It is an amenable number.

12558081 is a deficient number, since it is larger than the sum of its proper divisors (4225119).

12558081 is an equidigital number, since it uses as much as digits as its factorization.

12558081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9775.

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 12558081 is about 3543.7382804039. The cubic root of 12558081 is about 232.4383372144.

The spelling of 12558081 in words is "twelve million, five hundred fifty-eight thousand, eighty-one".