1115000161 has 8 divisors (see below), whose sum is σ = 1280383200. Its totient is φ = 960287040.

The previous prime is 1115000101. The next prime is 1115000177. The reversal of 1115000161 is 1610005111.

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 1115000161 - 2¹⁵ = 1114967393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115000101) 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, 2667256 + ... + 2667673.

It is an arithmetic number, because the mean of its divisors is an integer number (160047900).

Almost surely, 2^1115000161 is an apocalyptic number.

1115000161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1115000161 is a deficient number, since it is larger than the sum of its proper divisors (165383039).

1115000161 is a wasteful number, since it uses less digits than its factorization.

1115000161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334959.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 1115000161 is about 33391.6181249127. The cubic root of 1115000161 is about 1036.9511797300.

Adding to 1115000161 its reverse (1610005111), we get a palindrome (2725005272).

The spelling of 1115000161 in words is "one billion, one hundred fifteen million, one hundred sixty-one", and thus it is an aban number.