1145422247 has 2 divisors, whose sum is σ = 1145422248. Its totient is φ = 1145422246.

The previous prime is 1145422217. The next prime is 1145422259. The reversal of 1145422247 is 7422245411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145422247 - 2²⁴ = 1128645031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145422217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572711123 + 572711124.

It is an arithmetic number, because the mean of its divisors is an integer number (572711124).

Almost surely, 2^1145422247 is an apocalyptic number.

1145422247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145422247 is an equidigital number, since it uses as much as digits as its factorization.

1145422247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 32.

The square root of 1145422247 is about 33844.0873270354. The cubic root of 1145422247 is about 1046.2975410177.

Adding to 1145422247 its reverse (7422245411), we get a palindrome (8567667658).

The spelling of 1145422247 in words is "one billion, one hundred forty-five million, four hundred twenty-two thousand, two hundred forty-seven".