143402983 has 2 divisors, whose sum is σ = 143402984. Its totient is φ = 143402982.

The previous prime is 143402977. The next prime is 143403017. The reversal of 143402983 is 389204341.

143402983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (143403017) can be obtained adding 143402983 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143402983 - 2⁵ = 143402951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143402183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71701491 + 71701492.

It is an arithmetic number, because the mean of its divisors is an integer number (71701492).

Almost surely, 2^143402983 is an apocalyptic number.

143402983 is a deficient number, since it is larger than the sum of its proper divisors (1).

143402983 is an equidigital number, since it uses as much as digits as its factorization.

143402983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 143402983 is about 11975.0984547101. The cubic root of 143402983 is about 523.4229110415.

The spelling of 143402983 in words is "one hundred forty-three million, four hundred two thousand, nine hundred eighty-three".