13257143 has 2 divisors, whose sum is σ = 13257144. Its totient is φ = 13257142.

The previous prime is 13257121. The next prime is 13257151. The reversal of 13257143 is 34175231.

It is a strong prime.

It is an emirp because it is prime and its reverse (34175231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13257143 - 2¹⁸ = 12994999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13257043) 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, 6628571 + 6628572.

It is an arithmetic number, because the mean of its divisors is an integer number (6628572).

Almost surely, 2^13257143 is an apocalyptic number.

13257143 is a deficient number, since it is larger than the sum of its proper divisors (1).

13257143 is an equidigital number, since it uses as much as digits as its factorization.

13257143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 13257143 is about 3641.0359789488. The cubic root of 13257143 is about 236.6736890949.

It can be divided in two parts, 132 and 57143, that added together give a palindrome (57275).

The spelling of 13257143 in words is "thirteen million, two hundred fifty-seven thousand, one hundred forty-three".