2135856 has 20 divisors (see below), whose sum is σ = 5517752. Its totient is φ = 711936.

The previous prime is 2135851. The next prime is 2135857. The reversal of 2135856 is 6585312.

It is a d-powerful number, because it can be written as 2¹⁶ + 1 + 3² + 5 + 8² + 5⁸ + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (2135851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22201 + ... + 22296.

2^2135856 is an apocalyptic number.

It is an amenable number.

2135856 is an abundant number, since it is smaller than the sum of its proper divisors (3381896).

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

2135856 is a wasteful number, since it uses less digits than its factorization.

2135856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44508 (or 44502 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 2135856 is about 1461.4568074356. The cubic root of 2135856 is about 128.7826397908.

The spelling of 2135856 in words is "two million, one hundred thirty-five thousand, eight hundred fifty-six".