1445728603 has 8 divisors (see below), whose sum is σ = 1669932720. Its totient is φ = 1236986880.

The previous prime is 1445728597. The next prime is 1445728607. The reversal of 1445728603 is 3068275441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445728603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445728607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3865398 + ... + 3865771.

It is an arithmetic number, because the mean of its divisors is an integer number (208741590).

Almost surely, 2^1445728603 is an apocalyptic number.

1445728603 is a deficient number, since it is larger than the sum of its proper divisors (224204117).

1445728603 is a wasteful number, since it uses less digits than its factorization.

1445728603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731197.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 1445728603 is about 38022.7379734811. The cubic root of 1445728603 is about 1130.7387038219.

The spelling of 1445728603 in words is "one billion, four hundred forty-five million, seven hundred twenty-eight thousand, six hundred three".