1001001007 has 4 divisors (see below), whose sum is σ = 1001172856. Its totient is φ = 1000829160.

The previous prime is 1001000989. The next prime is 1001001011. The reversal of 1001001007 is 7001001001.

1001001007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001001007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001000984 and 1001001002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001001017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76869 + ... + 88942.

It is an arithmetic number, because the mean of its divisors is an integer number (250293214).

Almost surely, 2^1001001007 is an apocalyptic number.

1001001007 is a deficient number, since it is larger than the sum of its proper divisors (171849).

1001001007 is an equidigital number, since it uses as much as digits as its factorization.

1001001007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171848.

The product of its (nonzero) digits is 7, while the sum is 10.

The square root of 1001001007 is about 31638.5999532217. The cubic root of 1001001007 is about 1000.3335577269. Note that the first 3 decimals are identical.

Adding to 1001001007 its reverse (7001001001), we get a palindrome (8002002008).

The spelling of 1001001007 in words is "one billion, one million, one thousand, seven".