12987253 has 2 divisors, whose sum is σ = 12987254. Its totient is φ = 12987252.

The previous prime is 12987229. The next prime is 12987307. The reversal of 12987253 is 35278921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11444689 + 1542564 = 3383^2 + 1242^2 .

It is an emirp because it is prime and its reverse (35278921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12987253 - 2²¹ = 10890101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12987053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6493626 + 6493627.

It is an arithmetic number, because the mean of its divisors is an integer number (6493627).

Almost surely, 2^12987253 is an apocalyptic number.

It is an amenable number.

12987253 is a deficient number, since it is larger than the sum of its proper divisors (1).

12987253 is an equidigital number, since it uses as much as digits as its factorization.

12987253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 12987253 is about 3603.7831510789. The cubic root of 12987253 is about 235.0565911695.

The spelling of 12987253 in words is "twelve million, nine hundred eighty-seven thousand, two hundred fifty-three".