1002161012 has 12 divisors (see below), whose sum is σ = 1755217380. Its totient is φ = 500670336.

The previous prime is 1002161003. The next prime is 1002161051. The reversal of 1002161012 is 2101612001.

It can be written as a sum of positive squares in 2 ways, for example, as 549152356 + 453008656 = 23434^2 + 21284^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 97013 + ... + 106844.

It is an arithmetic number, because the mean of its divisors is an integer number (146268115).

Almost surely, 2^1002161012 is an apocalyptic number.

It is an amenable number.

1002161012 is a deficient number, since it is larger than the sum of its proper divisors (753056368).

1002161012 is a wasteful number, since it uses less digits than its factorization.

1002161012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205090 (or 205088 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1002161012 is about 31656.9267617689. The cubic root of 1002161012 is about 1000.7198190695.

Adding to 1002161012 its reverse (2101612001), we get a palindrome (3103773013).

The spelling of 1002161012 in words is "one billion, two million, one hundred sixty-one thousand, twelve".