2910081 has 4 divisors (see below), whose sum is σ = 3880112. Its totient is φ = 1940052.

The previous prime is 2910073. The next prime is 2910091. The reversal of 2910081 is 1800192.

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 2910081 - 2³ = 2910073 is a prime.

It is a super-2 number, since 2×2910081² = 16937142853122, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

2910081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2910031) 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, 485011 + ... + 485016.

It is an arithmetic number, because the mean of its divisors is an integer number (970028).

2^2910081 is an apocalyptic number.

It is an amenable number.

2910081 is a deficient number, since it is larger than the sum of its proper divisors (970031).

2910081 is an equidigital number, since it uses as much as digits as its factorization.

2910081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970030.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 2910081 is about 1705.8959522785. The cubic root of 2910081 is about 142.7693643136.

The spelling of 2910081 in words is "two million, nine hundred ten thousand, eighty-one".