1445354403506 has 32 divisors (see below), whose sum is σ = 2379080189808. Its totient is φ = 654438470400.

The previous prime is 1445354403487. The next prime is 1445354403529. The reversal of 1445354403506 is 6053044535441.

It can be written as a sum of positive squares in 8 ways, for example, as 1210429038025 + 234925365481 = 1100195^2 + 484691^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16631840 + ... + 16718516.

Almost surely, 2^{1445354403506} is an apocalyptic number.

1445354403506 is a deficient number, since it is larger than the sum of its proper divisors (933725786302).

1445354403506 is a wasteful number, since it uses less digits than its factorization.

1445354403506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98846.

The product of its (nonzero) digits is 1728000, while the sum is 44.

Adding to 1445354403506 its reverse (6053044535441), we get a palindrome (7498398938947).

The spelling of 1445354403506 in words is "one trillion, four hundred forty-five billion, three hundred fifty-four million, four hundred three thousand, five hundred six".