1067641543 has 2 divisors, whose sum is σ = 1067641544. Its totient is φ = 1067641542.

The previous prime is 1067641537. The next prime is 1067641573. The reversal of 1067641543 is 3451467601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1067641543 - 2⁵ = 1067641511 is a prime.

It is a super-2 number, since 2×1067641543² = 2279716928678841698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1067641573) 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, 533820771 + 533820772.

It is an arithmetic number, because the mean of its divisors is an integer number (533820772).

Almost surely, 2^1067641543 is an apocalyptic number.

1067641543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067641543 is an equidigital number, since it uses as much as digits as its factorization.

1067641543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1067641543 is about 32674.7845134440. The cubic root of 1067641543 is about 1022.0570887977.

The spelling of 1067641543 in words is "one billion, sixty-seven million, six hundred forty-one thousand, five hundred forty-three".