143866313 has 2 divisors, whose sum is σ = 143866314. Its totient is φ = 143866312.

The previous prime is 143866301. The next prime is 143866337. The reversal of 143866313 is 313668341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133702969 + 10163344 = 11563^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 143866313 - 2⁴ = 143866297 is a prime.

It is not a weakly prime, because it can be changed into another prime (143866343) 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, 71933156 + 71933157.

It is an arithmetic number, because the mean of its divisors is an integer number (71933157).

Almost surely, 2^143866313 is an apocalyptic number.

It is an amenable number.

143866313 is a deficient number, since it is larger than the sum of its proper divisors (1).

143866313 is an equidigital number, since it uses as much as digits as its factorization.

143866313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 143866313 is about 11994.4284148933. The cubic root of 143866313 is about 523.9860253543.

The spelling of 143866313 in words is "one hundred forty-three million, eight hundred sixty-six thousand, three hundred thirteen".