1001000161 has 8 divisors (see below), whose sum is σ = 1204210880. Its totient is φ = 812842128.

The previous prime is 1001000159. The next prime is 1001000173. The reversal of 1001000161 is 1610001001.

1001000161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001000161 - 2¹ = 1001000159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001000111) 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, 3763026 + ... + 3763291.

It is an arithmetic number, because the mean of its divisors is an integer number (150526360).

Almost surely, 2^1001000161 is an apocalyptic number.

It is an amenable number.

1001000161 is a deficient number, since it is larger than the sum of its proper divisors (203210719).

1001000161 is an equidigital number, since it uses as much as digits as its factorization.

1001000161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526343.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1001000161 is about 31638.5865834743. The cubic root of 1001000161 is about 1000.3332759148. Note that the first 3 decimals are identical.

Adding to 1001000161 its reverse (1610001001), we get a palindrome (2611001162).

The spelling of 1001000161 in words is "one billion, one million, one hundred sixty-one", and thus it is an aban number.