143171131 has 2 divisors, whose sum is σ = 143171132. Its totient is φ = 143171130.

The previous prime is 143171107. The next prime is 143171191. The reversal of 143171131 is 131171341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143171131 - 2¹⁵ = 143138363 is a prime.

It is a super-2 number, since 2×143171131² = 40995945503638322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143171191) 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, 71585565 + 71585566.

It is an arithmetic number, because the mean of its divisors is an integer number (71585566).

Almost surely, 2^143171131 is an apocalyptic number.

143171131 is a deficient number, since it is larger than the sum of its proper divisors (1).

143171131 is an equidigital number, since it uses as much as digits as its factorization.

143171131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 22.

The square root of 143171131 is about 11965.4139502150. The cubic root of 143171131 is about 523.1406711893.

The spelling of 143171131 in words is "one hundred forty-three million, one hundred seventy-one thousand, one hundred thirty-one".