1345224319 has 2 divisors, whose sum is σ = 1345224320. Its totient is φ = 1345224318.

The previous prime is 1345224317. The next prime is 1345224343. The reversal of 1345224319 is 9134225431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1345224319 - 2¹ = 1345224317 is a prime.

It is a super-2 number, since 2×1345224319² = 3619256936858027522, which contains 22 as substring.

Together with 1345224317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345224311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672612159 + 672612160.

It is an arithmetic number, because the mean of its divisors is an integer number (672612160).

Almost surely, 2^1345224319 is an apocalyptic number.

1345224319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345224319 is an equidigital number, since it uses as much as digits as its factorization.

1345224319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 1345224319 is about 36677.2997779280. The cubic root of 1345224319 is about 1103.9046683834.

The spelling of 1345224319 in words is "one billion, three hundred forty-five million, two hundred twenty-four thousand, three hundred nineteen".