2161155035 has 16 divisors (see below), whose sum is σ = 2811385920. Its totient is φ = 1585353600.

The previous prime is 2161155011. The next prime is 2161155041. The reversal of 2161155035 is 5305511612.

It is a de Polignac number, because none of the positive numbers 2^k-2161155035 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2161154989 and 2161155007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100280 + ... + 119909.

It is an arithmetic number, because the mean of its divisors is an integer number (175711620).

Almost surely, 2^2161155035 is an apocalyptic number.

2161155035 is a deficient number, since it is larger than the sum of its proper divisors (650230885).

2161155035 is a wasteful number, since it uses less digits than its factorization.

2161155035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220358.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 2161155035 is about 46488.2246918507. The cubic root of 2161155035 is about 1292.8911847643.

Adding to 2161155035 its reverse (5305511612), we get a palindrome (7466666647).

The spelling of 2161155035 in words is "two billion, one hundred sixty-one million, one hundred fifty-five thousand, thirty-five".