2135287168 has 128 divisors (see below), whose sum is σ = 5167483200. Its totient is φ = 859299840.

The previous prime is 2135287153. The next prime is 2135287171. The reversal of 2135287168 is 8617825312.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 960298 + ... + 962518.

Almost surely, 2^2135287168 is an apocalyptic number.

2135287168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135287168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2583741600).

2135287168 is an abundant number, since it is smaller than the sum of its proper divisors (3032196032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135287168 is a wasteful number, since it uses less digits than its factorization.

2135287168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308 (or 2296 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 2135287168 is about 46209.1675752767. The cubic root of 2135287168 is about 1287.7120609383.

The spelling of 2135287168 in words is "two billion, one hundred thirty-five million, two hundred eighty-seven thousand, one hundred sixty-eight".