1002166043 has 8 divisors (see below), whose sum is σ = 1005208560. Its totient is φ = 999129600.

The previous prime is 1002166027. The next prime is 1002166057. The reversal of 1002166043 is 3406612001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002166043 - 2⁴ = 1002166027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002166003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833843 + ... + 835043.

It is an arithmetic number, because the mean of its divisors is an integer number (125651070).

Almost surely, 2^1002166043 is an apocalyptic number.

1002166043 is a deficient number, since it is larger than the sum of its proper divisors (3042517).

1002166043 is a wasteful number, since it uses less digits than its factorization.

1002166043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1002166043 is about 31657.0062229517. The cubic root of 1002166043 is about 1000.7214936550.

Adding to 1002166043 its reverse (3406612001), we get a palindrome (4408778044).

The spelling of 1002166043 in words is "one billion, two million, one hundred sixty-six thousand, forty-three".