143297953 has 2 divisors, whose sum is σ = 143297954. Its totient is φ = 143297952.

The previous prime is 143297939. The next prime is 143297963. The reversal of 143297953 is 359792341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139428864 + 3869089 = 11808^2 + 1967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143297953 is a prime.

It is not a weakly prime, because it can be changed into another prime (143297963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71648976 + 71648977.

It is an arithmetic number, because the mean of its divisors is an integer number (71648977).

Almost surely, 2^143297953 is an apocalyptic number.

It is an amenable number.

143297953 is a deficient number, since it is larger than the sum of its proper divisors (1).

143297953 is an equidigital number, since it uses as much as digits as its factorization.

143297953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 143297953 is about 11970.7123012793. The cubic root of 143297953 is about 523.2950928374.

The spelling of 143297953 in words is "one hundred forty-three million, two hundred ninety-seven thousand, nine hundred fifty-three".