2135985 has 16 divisors (see below), whose sum is σ = 3443136. Its totient is φ = 1130688.

The previous prime is 2135971. The next prime is 2136011. The reversal of 2135985 is 5895312.

It is not a de Polignac number, because 2135985 - 2⁶ = 2135921 is a prime.

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, 1902 + ... + 2808.

It is an arithmetic number, because the mean of its divisors is an integer number (215196).

2^2135985 is an apocalyptic number.

It is an amenable number.

2135985 is a deficient number, since it is larger than the sum of its proper divisors (1307151).

2135985 is a wasteful number, since it uses less digits than its factorization.

2135985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072.

The product of its digits is 10800, while the sum is 33.

The square root of 2135985 is about 1461.5009408139. The cubic root of 2135985 is about 128.7852324478.

The spelling of 2135985 in words is "two million, one hundred thirty-five thousand, nine hundred eighty-five".