143924161 has 2 divisors, whose sum is σ = 143924162. Its totient is φ = 143924160.

The previous prime is 143924093. The next prime is 143924167. The reversal of 143924161 is 161429341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133263936 + 10660225 = 11544^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 143924161 - 2¹¹ = 143922113 is a prime.

It is not a weakly prime, because it can be changed into another prime (143924167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71962080 + 71962081.

It is an arithmetic number, because the mean of its divisors is an integer number (71962081).

Almost surely, 2^143924161 is an apocalyptic number.

It is an amenable number.

143924161 is a deficient number, since it is larger than the sum of its proper divisors (1).

143924161 is an equidigital number, since it uses as much as digits as its factorization.

143924161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 143924161 is about 11996.8396255014. The cubic root of 143924161 is about 524.0562467544.

It can be divided in two parts, 1439 and 24161, that added together give a square (25600 = 160²).

The spelling of 143924161 in words is "one hundred forty-three million, nine hundred twenty-four thousand, one hundred sixty-one".