143033161 has 2 divisors, whose sum is σ = 143033162. Its totient is φ = 143033160.

The previous prime is 143033147. The next prime is 143033183. The reversal of 143033161 is 161330341.

It is a happy number.

It is an a-pointer prime, because the next prime (143033183) can be obtained adding 143033161 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126427536 + 16605625 = 11244^2 + 4075^2 .

It is a cyclic number.

It is not a de Polignac number, because 143033161 - 2⁹ = 143032649 is a prime.

It is not a weakly prime, because it can be changed into another prime (143030161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71516580 + 71516581.

It is an arithmetic number, because the mean of its divisors is an integer number (71516581).

Almost surely, 2^143033161 is an apocalyptic number.

It is an amenable number.

143033161 is a deficient number, since it is larger than the sum of its proper divisors (1).

143033161 is an equidigital number, since it uses as much as digits as its factorization.

143033161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 143033161 is about 11959.6471937930. The cubic root of 143033161 is about 522.9725718536.

The spelling of 143033161 in words is "one hundred forty-three million, thirty-three thousand, one hundred sixty-one".