2291567 has 2 divisors, whose sum is σ = 2291568. Its totient is φ = 2291566.

The previous prime is 2291563. The next prime is 2291573. The reversal of 2291567 is 7651922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2291567 - 2² = 2291563 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2291563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145783 + 1145784.

It is an arithmetic number, because the mean of its divisors is an integer number (1145784).

2^2291567 is an apocalyptic number.

2291567 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291567 is an equidigital number, since it uses as much as digits as its factorization.

2291567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 2291567 is about 1513.7922578742. The cubic root of 2291567 is about 131.8390869018.

The spelling of 2291567 in words is "two million, two hundred ninety-one thousand, five hundred sixty-seven".