398000143 has 2 divisors, whose sum is σ = 398000144. Its totient is φ = 398000142.

The previous prime is 398000129. The next prime is 398000153. The reversal of 398000143 is 341000893.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398000143 is a prime.

It is a super-2 number, since 2×398000143² = 316808227656040898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398000153) 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, 199000071 + 199000072.

It is an arithmetic number, because the mean of its divisors is an integer number (199000072).

Almost surely, 2^398000143 is an apocalyptic number.

398000143 is a deficient number, since it is larger than the sum of its proper divisors (1).

398000143 is an equidigital number, since it uses as much as digits as its factorization.

398000143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 398000143 is about 19949.9409272308. The cubic root of 398000143 is about 735.5763249368.

The spelling of 398000143 in words is "three hundred ninety-eight million, one hundred forty-three", and thus it is an aban number.