1000500001 has 8 divisors (see below), whose sum is σ = 1016674344. Its totient is φ = 984445440.

The previous prime is 1000499989. The next prime is 1000500013. The reversal of 1000500001 is 1000050001.

1000500001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1000499989) and next prime (1000500013).

It can be written as a sum of positive squares in 4 ways, for example, as 508547601 + 491952400 = 22551^2 + 22180^2 .

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 1000500001 - 2¹⁵ = 1000467233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000500601) 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, 13030 + ... + 46591.

It is an arithmetic number, because the mean of its divisors is an integer number (127084293).

Almost surely, 2^1000500001 is an apocalyptic number.

It is an amenable number.

1000500001 is a deficient number, since it is larger than the sum of its proper divisors (16174343).

1000500001 is an equidigital number, since it uses as much as digits as its factorization.

1000500001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59891.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 1000500001 is about 31630.6813236769. The cubic root of 1000500001 is about 1000.1666392298.

Adding to 1000500001 its reverse (1000050001), we get a palindrome (2000550002).

It can be divided in two parts, 100050000 and 1, that added together give a palindrome (100050001).

The spelling of 1000500001 in words is "one billion, five hundred thousand, one".