2115894 has 16 divisors (see below), whose sum is σ = 4616640. Its totient is φ = 641160.

The previous prime is 2115877. The next prime is 2115923. The reversal of 2115894 is 4985112.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15964 + ... + 16095.

It is an arithmetic number, because the mean of its divisors is an integer number (288540).

2^2115894 is an apocalyptic number.

2115894 is an abundant number, since it is smaller than the sum of its proper divisors (2500746).

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

2115894 is a wasteful number, since it uses less digits than its factorization.

2115894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32075.

The product of its digits is 2880, while the sum is 30.

The square root of 2115894 is about 1454.6112882829. The cubic root of 2115894 is about 128.3801766740.

It can be divided in two parts, 211 and 5894, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 2115894 in words is "two million, one hundred fifteen thousand, eight hundred ninety-four".