143243297 has 2 divisors, whose sum is σ = 143243298. Its totient is φ = 143243296.

The previous prime is 143243293. The next prime is 143243323. The reversal of 143243297 is 792342341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141158161 + 2085136 = 11881^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 143243297 - 2² = 143243293 is a prime.

It is not a weakly prime, because it can be changed into another prime (143243291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71621648 + 71621649.

It is an arithmetic number, because the mean of its divisors is an integer number (71621649).

Almost surely, 2^143243297 is an apocalyptic number.

It is an amenable number.

143243297 is a deficient number, since it is larger than the sum of its proper divisors (1).

143243297 is an equidigital number, since it uses as much as digits as its factorization.

143243297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 143243297 is about 11968.4291784678. The cubic root of 143243297 is about 523.2285534973.

The spelling of 143243297 in words is "one hundred forty-three million, two hundred forty-three thousand, two hundred ninety-seven".