143073473 has 2 divisors, whose sum is σ = 143073474. Its totient is φ = 143073472.

The previous prime is 143073433. The next prime is 143073493. The reversal of 143073473 is 374370341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82591744 + 60481729 = 9088^2 + 7777^2 .

It is a cyclic number.

It is not a de Polignac number, because 143073473 - 2²⁴ = 126296257 is a prime.

It is not a weakly prime, because it can be changed into another prime (143073433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71536736 + 71536737.

It is an arithmetic number, because the mean of its divisors is an integer number (71536737).

Almost surely, 2^143073473 is an apocalyptic number.

It is an amenable number.

143073473 is a deficient number, since it is larger than the sum of its proper divisors (1).

143073473 is an equidigital number, since it uses as much as digits as its factorization.

143073473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 143073473 is about 11961.3324090588. The cubic root of 143073473 is about 523.0216982005.

The spelling of 143073473 in words is "one hundred forty-three million, seventy-three thousand, four hundred seventy-three".