2135854 has 24 divisors (see below), whose sum is σ = 3813264. Its totient is φ = 878400.

The previous prime is 2135851. The next prime is 2135857. The reversal of 2135854 is 4585312.

It is an interprime number because it is at equal distance from previous prime (2135851) and next prime (2135857).

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 34984 + ... + 35044.

It is an arithmetic number, because the mean of its divisors is an integer number (158886).

2^2135854 is an apocalyptic number.

2135854 is a deficient number, since it is larger than the sum of its proper divisors (1677410).

2135854 is an equidigital number, since it uses as much as digits as its factorization.

2135854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 111 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 2135854 is about 1461.4561231867. The cubic root of 2135854 is about 128.7825995937.

It can be divided in two parts, 21358 and 54, that added together give a palindrome (21412).

The spelling of 2135854 in words is "two million, one hundred thirty-five thousand, eight hundred fifty-four".