1305250223 has 2 divisors, whose sum is σ = 1305250224. Its totient is φ = 1305250222.

The previous prime is 1305250117. The next prime is 1305250267. The reversal of 1305250223 is 3220525031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1305250223 - 2¹² = 1305246127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305250283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652625111 + 652625112.

It is an arithmetic number, because the mean of its divisors is an integer number (652625112).

Almost surely, 2^1305250223 is an apocalyptic number.

1305250223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305250223 is an equidigital number, since it uses as much as digits as its factorization.

1305250223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1305250223 is about 36128.2468852282. The cubic root of 1305250223 is about 1092.8601547055.

Adding to 1305250223 its reverse (3220525031), we get a palindrome (4525775254).

The spelling of 1305250223 in words is "one billion, three hundred five million, two hundred fifty thousand, two hundred twenty-three".