2591189 has 2 divisors, whose sum is σ = 2591190. Its totient is φ = 2591188.

The previous prime is 2591167. The next prime is 2591209. The reversal of 2591189 is 9811952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1868689 + 722500 = 1367^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2591189 - 2¹² = 2587093 is a prime.

It is a super-3 number, since 3×2591189³ = 52193753336979252807, which contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2591119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295594 + 1295595.

It is an arithmetic number, because the mean of its divisors is an integer number (1295595).

2^2591189 is an apocalyptic number.

It is an amenable number.

2591189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2591189 is an equidigital number, since it uses as much as digits as its factorization.

2591189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 35.

The square root of 2591189 is about 1609.7170558828. The cubic root of 2591189 is about 137.3513810186.

The spelling of 2591189 in words is "two million, five hundred ninety-one thousand, one hundred eighty-nine".