143233973 has 2 divisors, whose sum is σ = 143233974. Its totient is φ = 143233972.

The previous prime is 143233969. The next prime is 143233991. The reversal of 143233973 is 379332341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72556324 + 70677649 = 8518^2 + 8407^2 .

It is a cyclic number.

It is not a de Polignac number, because 143233973 - 2² = 143233969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143233943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71616986 + 71616987.

It is an arithmetic number, because the mean of its divisors is an integer number (71616987).

Almost surely, 2^143233973 is an apocalyptic number.

It is an amenable number.

143233973 is a deficient number, since it is larger than the sum of its proper divisors (1).

143233973 is an equidigital number, since it uses as much as digits as its factorization.

143233973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 35.

The square root of 143233973 is about 11968.0396473274. The cubic root of 143233973 is about 523.2172005777.

The spelling of 143233973 in words is "one hundred forty-three million, two hundred thirty-three thousand, nine hundred seventy-three".