2161862 has 8 divisors (see below), whose sum is σ = 3383856. Its totient is φ = 1033912.

The previous prime is 2161853. The next prime is 2161871. The reversal of 2161862 is 2681612.

2161862 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2161853) and next prime (2161871).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23453 + ... + 23544.

It is an arithmetic number, because the mean of its divisors is an integer number (422982).

2^2161862 is an apocalyptic number.

2161862 is a deficient number, since it is larger than the sum of its proper divisors (1221994).

2161862 is a wasteful number, since it uses less digits than its factorization.

2161862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47022.

The product of its digits is 1152, while the sum is 26.

The square root of 2161862 is about 1470.3271744751. The cubic root of 2161862 is about 129.3032147838.

The spelling of 2161862 in words is "two million, one hundred sixty-one thousand, eight hundred sixty-two".