2061291 has 24 divisors (see below), whose sum is σ = 3065920. Its totient is φ = 1227744.

The previous prime is 2061289. The next prime is 2061313. The reversal of 2061291 is 1921602.

It is not a de Polignac number, because 2061291 - 2¹ = 2061289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2061271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47916 + ... + 47958.

2^2061291 is an apocalyptic number.

2061291 is a deficient number, since it is larger than the sum of its proper divisors (1004629).

2061291 is a wasteful number, since it uses less digits than its factorization.

2061291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2061291 is about 1435.7196801604. The cubic root of 2061291 is about 127.2662074737.

Adding to 2061291 its reverse (1921602), we get a palindrome (3982893).

The spelling of 2061291 in words is "two million, sixty-one thousand, two hundred ninety-one".