10001005 has 16 divisors (see below), whose sum is σ = 13893120. Its totient is φ = 6769152.

The previous prime is 10000993. The next prime is 10001009. The reversal of 10001005 is 50010001.

10001005 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10001005 - 2⁷ = 10000877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 957 + ... + 4573.

It is an arithmetic number, because the mean of its divisors is an integer number (868320).

Almost surely, 2^10001005 is an apocalyptic number.

It is an amenable number.

10001005 is a deficient number, since it is larger than the sum of its proper divisors (3892115).

10001005 is an equidigital number, since it uses as much as digits as its factorization.

10001005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708.

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

The square root of 10001005 is about 3162.4365606285. The cubic root of 10001005 is about 215.4506861176.

Adding to 10001005 its reverse (50010001), we get a palindrome (60011006).

The spelling of 10001005 in words is "ten million, one thousand, five".