2081953 has 4 divisors (see below), whose sum is σ = 2138260. Its totient is φ = 2025648.

The previous prime is 2081927. The next prime is 2081969. The reversal of 2081953 is 3591802.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1993744 + 88209 = 1412^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 2081953 - 2⁵ = 2081921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081903) 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 in 3 ways as a sum of consecutive naturals, for example, 28098 + ... + 28171.

It is an arithmetic number, because the mean of its divisors is an integer number (534565).

2^2081953 is an apocalyptic number.

It is an amenable number.

2081953 is a deficient number, since it is larger than the sum of its proper divisors (56307).

2081953 is an equidigital number, since it uses as much as digits as its factorization.

2081953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56306.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2081953 is about 1442.8974322522. The cubic root of 2081953 is about 127.6900255016.

The spelling of 2081953 in words is "two million, eighty-one thousand, nine hundred fifty-three".