13449143 has 2 divisors, whose sum is σ = 13449144. Its totient is φ = 13449142.

The previous prime is 13449119. The next prime is 13449157. The reversal of 13449143 is 34194431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13449143 - 2²⁰ = 12400567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13449103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6724571 + 6724572.

It is an arithmetic number, because the mean of its divisors is an integer number (6724572).

Almost surely, 2^13449143 is an apocalyptic number.

13449143 is a deficient number, since it is larger than the sum of its proper divisors (1).

13449143 is an equidigital number, since it uses as much as digits as its factorization.

13449143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 13449143 is about 3667.3073228187. The cubic root of 13449143 is about 237.8107798562.

The spelling of 13449143 in words is "thirteen million, four hundred forty-nine thousand, one hundred forty-three".