2115062161 has 4 divisors (see below), whose sum is σ = 2115893824. Its totient is φ = 2114230500.

The previous prime is 2115062153. The next prime is 2115062167. The reversal of 2115062161 is 1612605112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2115062161 - 2³ = 2115062153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115062167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412005 + ... + 417106.

It is an arithmetic number, because the mean of its divisors is an integer number (528973456).

Almost surely, 2^2115062161 is an apocalyptic number.

It is an amenable number.

2115062161 is a deficient number, since it is larger than the sum of its proper divisors (831663).

2115062161 is an equidigital number, since it uses as much as digits as its factorization.

2115062161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831662.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2115062161 is about 45989.8049680579. The cubic root of 2115062161 is about 1283.6335074673.

Adding to 2115062161 its reverse (1612605112), we get a palindrome (3727667273).

The spelling of 2115062161 in words is "two billion, one hundred fifteen million, sixty-two thousand, one hundred sixty-one".