1144322591 has 2 divisors, whose sum is σ = 1144322592. Its totient is φ = 1144322590.

The previous prime is 1144322567. The next prime is 1144322593. The reversal of 1144322591 is 1952234411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1144322591 - 2¹⁸ = 1144060447 is a prime.

Together with 1144322593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144322593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572161295 + 572161296.

It is an arithmetic number, because the mean of its divisors is an integer number (572161296).

Almost surely, 2^1144322591 is an apocalyptic number.

1144322591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144322591 is an equidigital number, since it uses as much as digits as its factorization.

1144322591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 1144322591 is about 33827.8375158685. The cubic root of 1144322591 is about 1045.9626031766.

The spelling of 1144322591 in words is "one billion, one hundred forty-four million, three hundred twenty-two thousand, five hundred ninety-one".