1445000 has 60 divisors (see below), whose sum is σ = 3596505. Its totient is φ = 544000.

The previous prime is 1444999. The next prime is 1445033. The reversal of 1445000 is 5441.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 196 + 1444804 = 14^2 + 1202^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=850.

It is an Ulam number.

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 84992 + ... + 85008.

2^1445000 is an apocalyptic number.

1445000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445000

1445000 is an abundant number, since it is smaller than the sum of its proper divisors (2151505).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445000 is an equidigital number, since it uses as much as digits as its factorization.

1445000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1445000 is about 1202.0815280171. The cubic root of 1445000 is about 113.0548719328.

The spelling of 1445000 in words is "one million, four hundred forty-five thousand".