12445087 has 4 divisors (see below), whose sum is σ = 12534760. Its totient is φ = 12355416.

The previous prime is 12445079. The next prime is 12445091. The reversal of 12445087 is 78054421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78054421 = 229 ⋅340849.

It is a cyclic number.

It is not a de Polignac number, because 12445087 - 2³ = 12445079 is a prime.

It is a super-3 number, since 3×12445087³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44628 + ... + 44905.

It is an arithmetic number, because the mean of its divisors is an integer number (3133690).

Almost surely, 2^12445087 is an apocalyptic number.

12445087 is a deficient number, since it is larger than the sum of its proper divisors (89673).

12445087 is an equidigital number, since it uses as much as digits as its factorization.

12445087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89672.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 12445087 is about 3527.7594872667. The cubic root of 12445087 is about 231.7390980552.

The spelling of 12445087 in words is "twelve million, four hundred forty-five thousand, eighty-seven".