143703389 has 2 divisors, whose sum is σ = 143703390. Its totient is φ = 143703388.

The previous prime is 143703331. The next prime is 143703407. The reversal of 143703389 is 983307341.

143703389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142611364 + 1092025 = 11942^2 + 1045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143703389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143702389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71851694 + 71851695.

It is an arithmetic number, because the mean of its divisors is an integer number (71851695).

Almost surely, 2^143703389 is an apocalyptic number.

It is an amenable number.

143703389 is a deficient number, since it is larger than the sum of its proper divisors (1).

143703389 is an equidigital number, since it uses as much as digits as its factorization.

143703389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 143703389 is about 11987.6348376150. The cubic root of 143703389 is about 523.7881514996.

The spelling of 143703389 in words is "one hundred forty-three million, seven hundred three thousand, three hundred eighty-nine".