2591143 has 2 divisors, whose sum is σ = 2591144. Its totient is φ = 2591142.

The previous prime is 2591131. The next prime is 2591153. The reversal of 2591143 is 3411952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2591143 is a prime.

2591143 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2591153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295571 + 1295572.

It is an arithmetic number, because the mean of its divisors is an integer number (1295572).

2^2591143 is an apocalyptic number.

2591143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2591143 is an equidigital number, since it uses as much as digits as its factorization.

2591143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 2591143 is about 1609.7027675941. The cubic root of 2591143 is about 137.3505682384.

The spelling of 2591143 in words is "two million, five hundred ninety-one thousand, one hundred forty-three".