143152993 has 2 divisors, whose sum is σ = 143152994. Its totient is φ = 143152992.

The previous prime is 143152981. The next prime is 143153027. The reversal of 143152993 is 399251341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142874209 + 278784 = 11953^2 + 528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143152993 is a prime.

It is not a weakly prime, because it can be changed into another prime (143152913) 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, 71576496 + 71576497.

It is an arithmetic number, because the mean of its divisors is an integer number (71576497).

Almost surely, 2^143152993 is an apocalyptic number.

It is an amenable number.

143152993 is a deficient number, since it is larger than the sum of its proper divisors (1).

143152993 is an equidigital number, since it uses as much as digits as its factorization.

143152993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 37.

The square root of 143152993 is about 11964.6559917116. The cubic root of 143152993 is about 523.1185784528.

The spelling of 143152993 in words is "one hundred forty-three million, one hundred fifty-two thousand, nine hundred ninety-three".