2135161645 has 8 divisors (see below), whose sum is σ = 2673593856. Its totient is φ = 1633862736.

The previous prime is 2135161601. The next prime is 2135161667. The reversal of 2135161645 is 5461615312.

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 2135161645 - 2¹³ = 2135153453 is a prime.

It is a super-3 number, since 3×2135161645³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2135161645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9283197 + ... + 9283426.

It is an arithmetic number, because the mean of its divisors is an integer number (334199232).

Almost surely, 2^2135161645 is an apocalyptic number.

It is an amenable number.

2135161645 is a deficient number, since it is larger than the sum of its proper divisors (538432211).

2135161645 is a wasteful number, since it uses less digits than its factorization.

2135161645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18566651.

The product of its digits is 21600, while the sum is 34.

The square root of 2135161645 is about 46207.8093508013. The cubic root of 2135161645 is about 1287.6868276971.

Adding to 2135161645 its reverse (5461615312), we get a palindrome (7596776957).

The spelling of 2135161645 in words is "two billion, one hundred thirty-five million, one hundred sixty-one thousand, six hundred forty-five".