1230566143 has 2 divisors, whose sum is σ = 1230566144. Its totient is φ = 1230566142.

The previous prime is 1230566089. The next prime is 1230566149. The reversal of 1230566143 is 3416650321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230566143 - 2⁹ = 1230565631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230566149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615283071 + 615283072.

It is an arithmetic number, because the mean of its divisors is an integer number (615283072).

Almost surely, 2^1230566143 is an apocalyptic number.

1230566143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230566143 is an equidigital number, since it uses as much as digits as its factorization.

1230566143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1230566143 is about 35079.4262068239. The cubic root of 1230566143 is about 1071.6056317319.

The spelling of 1230566143 in words is "one billion, two hundred thirty million, five hundred sixty-six thousand, one hundred forty-three".