12351287 has 4 divisors (see below), whose sum is σ = 13301400. Its totient is φ = 11401176.

The previous prime is 12351263. The next prime is 12351289. The reversal of 12351287 is 78215321.

12351287 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78215321 = 829 ⋅94349.

It is a cyclic number.

It is not a de Polignac number, because 12351287 - 2⁶ = 12351223 is a prime.

It is a Duffinian number.

12351287 is a modest number, since divided by 1287 gives 1235 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12351289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475037 + ... + 475062.

It is an arithmetic number, because the mean of its divisors is an integer number (3325350).

Almost surely, 2^12351287 is an apocalyptic number.

12351287 is a deficient number, since it is larger than the sum of its proper divisors (950113).

12351287 is an equidigital number, since it uses as much as digits as its factorization.

12351287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950112.

The product of its digits is 3360, while the sum is 29.

The square root of 12351287 is about 3514.4397846599. The cubic root of 12351287 is about 231.1554147393.

The spelling of 12351287 in words is "twelve million, three hundred fifty-one thousand, two hundred eighty-seven".