2291013 has 6 divisors (see below), whose sum is σ = 3309254. Its totient is φ = 1527336.

The previous prime is 2290999. The next prime is 2291017. The reversal of 2291013 is 3101922.

It is a happy number.

2291013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1979649 + 311364 = 1407^2 + 558^2 .

It is not a de Polignac number, because 2291013 - 2²¹ = 193861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291017) 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 5 ways as a sum of consecutive naturals, for example, 127270 + ... + 127287.

2^2291013 is an apocalyptic number.

It is an amenable number.

2291013 is a deficient number, since it is larger than the sum of its proper divisors (1018241).

2291013 is a wasteful number, since it uses less digits than its factorization.

2291013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254563 (or 254560 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2291013 is about 1513.6092626566. The cubic root of 2291013 is about 131.8284617501.

Adding to 2291013 its reverse (3101922), we get a palindrome (5392935).

The spelling of 2291013 in words is "two million, two hundred ninety-one thousand, thirteen".