143608121 has 2 divisors, whose sum is σ = 143608122. Its totient is φ = 143608120.

The previous prime is 143608109. The next prime is 143608133. The reversal of 143608121 is 121806341.

It is a balanced prime because it is at equal distance from previous prime (143608109) and next prime (143608133).

It can be written as a sum of positive squares in only one way, i.e., 81198121 + 62410000 = 9011^2 + 7900^2 .

It is an emirp because it is prime and its reverse (121806341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143608121 - 2²⁶ = 76499257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143608181) 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, 71804060 + 71804061.

It is an arithmetic number, because the mean of its divisors is an integer number (71804061).

Almost surely, 2^143608121 is an apocalyptic number.

It is an amenable number.

143608121 is a deficient number, since it is larger than the sum of its proper divisors (1).

143608121 is an equidigital number, since it uses as much as digits as its factorization.

143608121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 143608121 is about 11983.6605843123. The cubic root of 143608121 is about 523.6723776566.

The spelling of 143608121 in words is "one hundred forty-three million, six hundred eight thousand, one hundred twenty-one".