1445504685 has 16 divisors (see below), whose sum is σ = 2317835520. Its totient is φ = 769259840.

The previous prime is 1445504657. The next prime is 1445504717. The reversal of 1445504685 is 5864055441.

It is not a de Polignac number, because 1445504685 - 2¹¹ = 1445502637 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 97605 + ... + 111434.

It is an arithmetic number, because the mean of its divisors is an integer number (144864720).

Almost surely, 2^1445504685 is an apocalyptic number.

1445504685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1445504685 is a deficient number, since it is larger than the sum of its proper divisors (872330835).

1445504685 is a wasteful number, since it uses less digits than its factorization.

1445504685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209508.

The product of its (nonzero) digits is 384000, while the sum is 42.

The square root of 1445504685 is about 38019.7933318949. The cubic root of 1445504685 is about 1130.6803236110.

The spelling of 1445504685 in words is "one billion, four hundred forty-five million, five hundred four thousand, six hundred eighty-five".