2609191 has 6 divisors (see below), whose sum is σ = 2825520. Its totient is φ = 2408328.

The previous prime is 2609171. The next prime is 2609207. The reversal of 2609191 is 1919062.

2609191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2609191 - 2¹⁵ = 2576423 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 (2609171) 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, 7551 + ... + 7888.

It is an arithmetic number, because the mean of its divisors is an integer number (470920).

2^2609191 is an apocalyptic number.

2609191 is a deficient number, since it is larger than the sum of its proper divisors (216329).

2609191 is a wasteful number, since it uses less digits than its factorization.

2609191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15465 (or 15452 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2609191 is about 1615.2990435210. The cubic root of 2609191 is about 137.6687251055.

The spelling of 2609191 in words is "two million, six hundred nine thousand, one hundred ninety-one".