1161000001 has 8 divisors (see below), whose sum is σ = 1332653120. Its totient is φ = 990795888.

The previous prime is 1160999981. The next prime is 1161000011. The reversal of 1161000001 is 1000001611.

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 1161000001 - 2¹⁵ = 1160967233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161000011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360531 + ... + 363736.

It is an arithmetic number, because the mean of its divisors is an integer number (166581640).

Almost surely, 2^1161000001 is an apocalyptic number.

It is an amenable number.

1161000001 is a deficient number, since it is larger than the sum of its proper divisors (171653119).

1161000001 is an equidigital number, since it uses as much as digits as its factorization.

1161000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724503.

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

The square root of 1161000001 is about 34073.4500894758. The cubic root of 1161000001 is about 1051.0194184178.

Adding to 1161000001 its reverse (1000001611), we get a palindrome (2161001612).

The spelling of 1161000001 in words is "one billion, one hundred sixty-one million, one", and thus it is an aban number.