143994271 has 2 divisors, whose sum is σ = 143994272. Its totient is φ = 143994270.

The previous prime is 143994241. The next prime is 143994281. The reversal of 143994271 is 172499341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143994271 - 2¹³ = 143986079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143994241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71997135 + 71997136.

It is an arithmetic number, because the mean of its divisors is an integer number (71997136).

Almost surely, 2^143994271 is an apocalyptic number.

143994271 is a deficient number, since it is larger than the sum of its proper divisors (1).

143994271 is an equidigital number, since it uses as much as digits as its factorization.

143994271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 143994271 is about 11999.7612892924. The cubic root of 143994271 is about 524.1413277184.

The spelling of 143994271 in words is "one hundred forty-three million, nine hundred ninety-four thousand, two hundred seventy-one".