13958143 has 2 divisors, whose sum is σ = 13958144. Its totient is φ = 13958142.

The previous prime is 13958129. The next prime is 13958149. The reversal of 13958143 is 34185931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13958143 - 2¹³ = 13949951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13958099 and 13958108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13958149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6979071 + 6979072.

It is an arithmetic number, because the mean of its divisors is an integer number (6979072).

Almost surely, 2^13958143 is an apocalyptic number.

13958143 is a deficient number, since it is larger than the sum of its proper divisors (1).

13958143 is an equidigital number, since it uses as much as digits as its factorization.

13958143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 13958143 is about 3736.0598228615. The cubic root of 13958143 is about 240.7737930129.

The spelling of 13958143 in words is "thirteen million, nine hundred fifty-eight thousand, one hundred forty-three".