2135896 has 32 divisors (see below), whose sum is σ = 4688640. Its totient is φ = 893088.

The previous prime is 2135891. The next prime is 2135909. The reversal of 2135896 is 6985312.

2135896 = T₂₇₄ + T₂₇₅ + ... + T₃₂₁.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1965 + ... + 2851.

It is an arithmetic number, because the mean of its divisors is an integer number (146520).

2^2135896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2344320).

2135896 is an abundant number, since it is smaller than the sum of its proper divisors (2552744).

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

2135896 is a wasteful number, since it uses less digits than its factorization.

2135896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 939 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The square root of 2135896 is about 1461.4704923467. The cubic root of 2135896 is about 128.7834437266.

The spelling of 2135896 in words is "two million, one hundred thirty-five thousand, eight hundred ninety-six".