143022973 has 2 divisors, whose sum is σ = 143022974. Its totient is φ = 143022972.

The previous prime is 143022967. The next prime is 143023003. The reversal of 143022973 is 379220341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130370724 + 12652249 = 11418^2 + 3557^2 .

It is a cyclic number.

It is not a de Polignac number, because 143022973 - 2¹⁷ = 142891901 is a prime.

It is equal to p_8073292 and since 143022973 and 8073292 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143022923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71511486 + 71511487.

It is an arithmetic number, because the mean of its divisors is an integer number (71511487).

Almost surely, 2^143022973 is an apocalyptic number.

It is an amenable number.

143022973 is a deficient number, since it is larger than the sum of its proper divisors (1).

143022973 is an equidigital number, since it uses as much as digits as its factorization.

143022973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 143022973 is about 11959.2212539111. The cubic root of 143022973 is about 522.9601547539.

The spelling of 143022973 in words is "one hundred forty-three million, twenty-two thousand, nine hundred seventy-three".