2591023 has 2 divisors, whose sum is σ = 2591024. Its totient is φ = 2591022.

The previous prime is 2590997. The next prime is 2591027. The reversal of 2591023 is 3201952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2591023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2590985 and 2591003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2591027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295511 + 1295512.

It is an arithmetic number, because the mean of its divisors is an integer number (1295512).

2^2591023 is an apocalyptic number.

2591023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2591023 is an equidigital number, since it uses as much as digits as its factorization.

2591023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2591023 is about 1609.6654932004. The cubic root of 2591023 is about 137.3484478971.

Adding to 2591023 its reverse (3201952), we get a palindrome (5792975).

The spelling of 2591023 in words is "two million, five hundred ninety-one thousand, twenty-three".