2115267161 has 8 divisors (see below), whose sum is σ = 2418160704. Its totient is φ = 1812551760.

The previous prime is 2115267157. The next prime is 2115267307. The reversal of 2115267161 is 1617625112.

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 2115267161 - 2² = 2115267157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115267061) 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, 18035 + ... + 67496.

It is an arithmetic number, because the mean of its divisors is an integer number (302270088).

Almost surely, 2^2115267161 is an apocalyptic number.

It is an amenable number.

2115267161 is a deficient number, since it is larger than the sum of its proper divisors (302893543).

2115267161 is an equidigital number, since it uses as much as digits as its factorization.

2115267161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89071.

The product of its digits is 5040, while the sum is 32.

The square root of 2115267161 is about 45992.0336688866. The cubic root of 2115267161 is about 1283.6749777012.

The spelling of 2115267161 in words is "two billion, one hundred fifteen million, two hundred sixty-seven thousand, one hundred sixty-one".