2027205091 has 4 divisors (see below), whose sum is σ = 2029905184. Its totient is φ = 2024505000.

The previous prime is 2027205079. The next prime is 2027205097. The reversal of 2027205091 is 1905027202.

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

It is a cyclic number.

It is not a de Polignac number, because 2027205091 - 2²³ = 2018816483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2027205097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348920 + ... + 1350421.

It is an arithmetic number, because the mean of its divisors is an integer number (507476296).

Almost surely, 2^2027205091 is an apocalyptic number.

2027205091 is a deficient number, since it is larger than the sum of its proper divisors (2700093).

2027205091 is an equidigital number, since it uses as much as digits as its factorization.

2027205091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700092.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2027205091 is about 45024.4943447453. The cubic root of 2027205091 is about 1265.6080525463.

The spelling of 2027205091 in words is "two billion, twenty-seven million, two hundred five thousand, ninety-one".