1445389125 has 32 divisors (see below), whose sum is σ = 2407731456. Its totient is φ = 770040000.

The previous prime is 1445389093. The next prime is 1445389151. The reversal of 1445389125 is 5219835441.

It is not a de Polignac number, because 1445389125 - 2⁵ = 1445389093 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 516480 + ... + 519270.

It is an arithmetic number, because the mean of its divisors is an integer number (75241608).

Almost surely, 2^1445389125 is an apocalyptic number.

1445389125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1445389125 is a deficient number, since it is larger than the sum of its proper divisors (962342331).

1445389125 is a wasteful number, since it uses less digits than its factorization.

1445389125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190 (or 4180 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 1445389125 is about 38018.2735667994. The cubic root of 1445389125 is about 1130.6501922893.

The spelling of 1445389125 in words is "one billion, four hundred forty-five million, three hundred eighty-nine thousand, one hundred twenty-five".