2081158 has 4 divisors (see below), whose sum is σ = 3121740. Its totient is φ = 1040578.

The previous prime is 2081147. The next prime is 2081159. The reversal of 2081158 is 8511802.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081159) by changing a digit.

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 as a sum of consecutive naturals, namely, 520288 + ... + 520291.

It is an arithmetic number, because the mean of its divisors is an integer number (780435).

2^2081158 is an apocalyptic number.

2081158 is a deficient number, since it is larger than the sum of its proper divisors (1040582).

2081158 is a wasteful number, since it uses less digits than its factorization.

2081158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040581.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 2081158 is about 1442.6219185913. The cubic root of 2081158 is about 127.6737704926.

The spelling of 2081158 in words is "two million, eighty-one thousand, one hundred fifty-eight".