13142443 has 2 divisors, whose sum is σ = 13142444. Its totient is φ = 13142442.

The previous prime is 13142431. The next prime is 13142447. The reversal of 13142443 is 34424131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13142443 is a prime.

It is not a weakly prime, because it can be changed into another prime (13142447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571221 + 6571222.

It is an arithmetic number, because the mean of its divisors is an integer number (6571222).

Almost surely, 2^13142443 is an apocalyptic number.

13142443 is a deficient number, since it is larger than the sum of its proper divisors (1).

13142443 is an equidigital number, since it uses as much as digits as its factorization.

13142443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 13142443 is about 3625.2507499482. The cubic root of 13142443 is about 235.9891489313.

Adding to 13142443 its reverse (34424131), we get a palindrome (47566574).

The spelling of 13142443 in words is "thirteen million, one hundred forty-two thousand, four hundred forty-three".