143341993 has 2 divisors, whose sum is σ = 143341994. Its totient is φ = 143341992.

The previous prime is 143341987. The next prime is 143341999. The reversal of 143341993 is 399143341.

It is a balanced prime because it is at equal distance from previous prime (143341987) and next prime (143341999).

It can be written as a sum of positive squares in only one way, i.e., 142014889 + 1327104 = 11917^2 + 1152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143341993 is a prime.

It is not a weakly prime, because it can be changed into another prime (143341999) 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, 71670996 + 71670997.

It is an arithmetic number, because the mean of its divisors is an integer number (71670997).

Almost surely, 2^143341993 is an apocalyptic number.

It is an amenable number.

143341993 is a deficient number, since it is larger than the sum of its proper divisors (1).

143341993 is an equidigital number, since it uses as much as digits as its factorization.

143341993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 143341993 is about 11972.5516495023. The cubic root of 143341993 is about 523.3486957323.

The spelling of 143341993 in words is "one hundred forty-three million, three hundred forty-one thousand, nine hundred ninety-three".