1000091161 has 8 divisors (see below), whose sum is σ = 1014968448. Its totient is φ = 985236000.

The previous prime is 1000091149. The next prime is 1000091179. The reversal of 1000091161 is 1611900001.

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 1000091161 - 2¹¹ = 1000089113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000091761) 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, 100396 + ... + 109906.

It is an arithmetic number, because the mean of its divisors is an integer number (126871056).

Almost surely, 2^1000091161 is an apocalyptic number.

It is an amenable number.

1000091161 is a deficient number, since it is larger than the sum of its proper divisors (14877287).

1000091161 is an equidigital number, since it uses as much as digits as its factorization.

1000091161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11063.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1000091161 is about 31624.2179508047. The cubic root of 1000091161 is about 1000.0303860767.

Adding to 1000091161 its reverse (1611900001), we get a palindrome (2611991162).

The spelling of 1000091161 in words is "one billion, ninety-one thousand, one hundred sixty-one".