1445623343 has 2 divisors, whose sum is σ = 1445623344. Its totient is φ = 1445623342.

The previous prime is 1445623273. The next prime is 1445623357. The reversal of 1445623343 is 3433265441.

It is a strong prime.

It is an emirp because it is prime and its reverse (3433265441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445623343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445623363) 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, 722811671 + 722811672.

It is an arithmetic number, because the mean of its divisors is an integer number (722811672).

Almost surely, 2^1445623343 is an apocalyptic number.

1445623343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445623343 is an equidigital number, since it uses as much as digits as its factorization.

1445623343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 35.

The square root of 1445623343 is about 38021.3537765293. The cubic root of 1445623343 is about 1130.7112610399.

Adding to 1445623343 its reverse (3433265441), we get a palindrome (4878888784).

The spelling of 1445623343 in words is "one billion, four hundred forty-five million, six hundred twenty-three thousand, three hundred forty-three".