1445224523 has 2 divisors, whose sum is σ = 1445224524. Its totient is φ = 1445224522.

The previous prime is 1445224463. The next prime is 1445224549. The reversal of 1445224523 is 3254225441.

It is a strong prime.

It is an emirp because it is prime and its reverse (3254225441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1445224523 - 2²⁸ = 1176789067 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1445224523.

It is not a weakly prime, because it can be changed into another prime (1445224223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722612261 + 722612262.

It is an arithmetic number, because the mean of its divisors is an integer number (722612262).

Almost surely, 2^1445224523 is an apocalyptic number.

1445224523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445224523 is an equidigital number, since it uses as much as digits as its factorization.

1445224523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 32.

The square root of 1445224523 is about 38016.1087303790. The cubic root of 1445224523 is about 1130.6072708954.

Adding to 1445224523 its reverse (3254225441), we get a palindrome (4699449964).

The spelling of 1445224523 in words is "one billion, four hundred forty-five million, two hundred twenty-four thousand, five hundred twenty-three".