2291959 has 2 divisors, whose sum is σ = 2291960. Its totient is φ = 2291958.

The previous prime is 2291929. The next prime is 2291963. The reversal of 2291959 is 9591922.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2291959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2291909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145979 + 1145980.

It is an arithmetic number, because the mean of its divisors is an integer number (1145980).

2^2291959 is an apocalyptic number.

2291959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291959 is an equidigital number, since it uses as much as digits as its factorization.

2291959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 37.

The square root of 2291959 is about 1513.9217284919. The cubic root of 2291959 is about 131.8466040251.

Subtracting from 2291959 its sum of digits (37), we obtain a palindrome (2291922).

The spelling of 2291959 in words is "two million, two hundred ninety-one thousand, nine hundred fifty-nine".