1066231143 has 48 divisors (see below), whose sum is σ = 1719484416. Its totient is φ = 633519360.

The previous prime is 1066231141. The next prime is 1066231169. The reversal of 1066231143 is 3411326601.

It is not a de Polignac number, because 1066231143 - 2¹ = 1066231141 is a prime.

It is a super-2 number, since 2×1066231143² = 2273697700606172898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066231141) 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 in 47 ways as a sum of consecutive naturals, for example, 220530 + ... + 225312.

It is an arithmetic number, because the mean of its divisors is an integer number (35822592).

Almost surely, 2^1066231143 is an apocalyptic number.

1066231143 is a deficient number, since it is larger than the sum of its proper divisors (653253273).

1066231143 is a wasteful number, since it uses less digits than its factorization.

1066231143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884 (or 4881 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1066231143 is about 32653.1949891584. The cubic root of 1066231143 is about 1021.6068301384.

Adding to 1066231143 its reverse (3411326601), we get a palindrome (4477557744).

The spelling of 1066231143 in words is "one billion, sixty-six million, two hundred thirty-one thousand, one hundred forty-three".