1445522003 has 2 divisors, whose sum is σ = 1445522004. Its totient is φ = 1445522002.

The previous prime is 1445521991. The next prime is 1445522017. The reversal of 1445522003 is 3002255441.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3002255441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1445522003 - 2¹² = 1445517907 is a prime.

It is a super-2 number, since 2×1445522003² = 4179067722314264018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1445522503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722761001 + 722761002.

It is an arithmetic number, because the mean of its divisors is an integer number (722761002).

Almost surely, 2^1445522003 is an apocalyptic number.

1445522003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445522003 is an equidigital number, since it uses as much as digits as its factorization.

1445522003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1445522003 is about 38020.0210810042. The cubic root of 1445522003 is about 1130.6848389991.

Adding to 1445522003 its reverse (3002255441), we get a palindrome (4447777444).

The spelling of 1445522003 in words is "one billion, four hundred forty-five million, five hundred twenty-two thousand, three".