1001010985 has 8 divisors (see below), whose sum is σ = 1293614280. Its totient is φ = 739208064.

The previous prime is 1001010979. The next prime is 1001011003. The reversal of 1001010985 is 5890101001.

It can be written as a sum of positive squares in 4 ways, for example, as 26822041 + 974188944 = 5179^2 + 31212^2 .

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 1001010985 - 2²¹ = 998913833 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7700020 + ... + 7700149.

It is an arithmetic number, because the mean of its divisors is an integer number (161701785).

Almost surely, 2^1001010985 is an apocalyptic number.

It is an amenable number.

1001010985 is a deficient number, since it is larger than the sum of its proper divisors (292603295).

1001010985 is a wasteful number, since it uses less digits than its factorization.

1001010985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15400187.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 1001010985 is about 31638.7576399580. The cubic root of 1001010985 is about 1000.3368814981.

Adding to 1001010985 its reverse (5890101001), we get a palindrome (6891111986).

The spelling of 1001010985 in words is "one billion, one million, ten thousand, nine hundred eighty-five".