143874161 has 2 divisors, whose sum is σ = 143874162. Its totient is φ = 143874160.

The previous prime is 143874151. The next prime is 143874169. The reversal of 143874161 is 161478341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97634161 + 46240000 = 9881^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 143874161 - 2¹⁰ = 143873137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (143874169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71937080 + 71937081.

It is an arithmetic number, because the mean of its divisors is an integer number (71937081).

Almost surely, 2^143874161 is an apocalyptic number.

It is an amenable number.

143874161 is a deficient number, since it is larger than the sum of its proper divisors (1).

143874161 is an equidigital number, since it uses as much as digits as its factorization.

143874161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 143874161 is about 11994.7555623281. The cubic root of 143874161 is about 523.9955531060.

The spelling of 143874161 in words is "one hundred forty-three million, eight hundred seventy-four thousand, one hundred sixty-one".