2161353105 has 32 divisors (see below), whose sum is σ = 3866017920. Its totient is φ = 1145638080.

The previous prime is 2161353101. The next prime is 2161353107. The reversal of 2161353105 is 5013531612.

2161353105 is a `hidden beast` number, since 216 + 135 + 310 + 5 = 666.

It is not a de Polignac number, because 2161353105 - 2² = 2161353101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2161353101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27106 + ... + 71115.

It is an arithmetic number, because the mean of its divisors is an integer number (120813060).

Almost surely, 2^2161353105 is an apocalyptic number.

It is an amenable number.

2161353105 is a deficient number, since it is larger than the sum of its proper divisors (1704664815).

2161353105 is a wasteful number, since it uses less digits than its factorization.

2161353105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98398 (or 98392 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 2161353105 is about 46490.3549674553. The cubic root of 2161353105 is about 1292.9306814115.

Adding to 2161353105 its reverse (5013531612), we get a palindrome (7174884717).

The spelling of 2161353105 in words is "two billion, one hundred sixty-one million, three hundred fifty-three thousand, one hundred five".