2775081 has 4 divisors (see below), whose sum is σ = 3700112. Its totient is φ = 1850052.

The previous prime is 2775067. The next prime is 2775103. The reversal of 2775081 is 1805772.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2775081 - 2⁷ = 2774953 is a prime.

It is a super-2 number, since 2×2775081² = 15402149113122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2775001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462511 + ... + 462516.

It is an arithmetic number, because the mean of its divisors is an integer number (925028).

2^2775081 is an apocalyptic number.

It is an amenable number.

2775081 is a deficient number, since it is larger than the sum of its proper divisors (925031).

2775081 is an equidigital number, since it uses as much as digits as its factorization.

2775081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925030.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 2775081 is about 1665.8574368775. The cubic root of 2775081 is about 140.5266051448.

The spelling of 2775081 in words is "two million, seven hundred seventy-five thousand, eighty-one".