12287141 has 8 divisors (see below), whose sum is σ = 13189464. Its totient is φ = 11404800.

The previous prime is 12287137. The next prime is 12287147. The reversal of 12287141 is 14178221.

It can be written as a sum of positive squares in 4 ways, for example, as 7134241 + 5152900 = 2671^2 + 2270^2 .

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 12287141 - 2² = 12287137 is a prime.

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 12287141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12287147) 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, 3710 + ... + 6191.

It is an arithmetic number, because the mean of its divisors is an integer number (1648683).

Almost surely, 2^12287141 is an apocalyptic number.

It is an amenable number.

12287141 is a deficient number, since it is larger than the sum of its proper divisors (902323).

12287141 is an equidigital number, since it uses as much as digits as its factorization.

12287141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991.

The product of its digits is 896, while the sum is 26.

The square root of 12287141 is about 3505.3018414967. The cubic root of 12287141 is about 230.7545539868.

The spelling of 12287141 in words is "twelve million, two hundred eighty-seven thousand, one hundred forty-one".