12987241 has 8 divisors (see below), whose sum is σ = 13798400. Its totient is φ = 12188880.

The previous prime is 12987229. The next prime is 12987253. The reversal of 12987241 is 14278921.

12987241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12987229) and next prime (12987253).

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

It is not a de Polignac number, because 12987241 - 2¹⁷ = 12856169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12987197 and 12987206.

It is not an unprimeable number, because it can be changed into a prime (12987841) 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, 1065 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (1724800).

Almost surely, 2^12987241 is an apocalyptic number.

It is an amenable number.

12987241 is a deficient number, since it is larger than the sum of its proper divisors (811159).

12987241 is a wasteful number, since it uses less digits than its factorization.

12987241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399.

The product of its digits is 8064, while the sum is 34.

The square root of 12987241 is about 3603.7814861614. The cubic root of 12987241 is about 235.0565187734.

The spelling of 12987241 in words is "twelve million, nine hundred eighty-seven thousand, two hundred forty-one".