143698673 has 2 divisors, whose sum is σ = 143698674. Its totient is φ = 143698672.

The previous prime is 143698661. The next prime is 143698679. The reversal of 143698673 is 376896341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142874209 + 824464 = 11953^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 143698673 - 2¹⁴ = 143682289 is a prime.

It is not a weakly prime, because it can be changed into another prime (143698679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71849336 + 71849337.

It is an arithmetic number, because the mean of its divisors is an integer number (71849337).

Almost surely, 2^143698673 is an apocalyptic number.

It is an amenable number.

143698673 is a deficient number, since it is larger than the sum of its proper divisors (1).

143698673 is an equidigital number, since it uses as much as digits as its factorization.

143698673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 143698673 is about 11987.4381333127. The cubic root of 143698673 is about 523.7824216140.

The spelling of 143698673 in words is "one hundred forty-three million, six hundred ninety-eight thousand, six hundred seventy-three".