1445171000 has 128 divisors (see below), whose sum is σ = 4162354560. Its totient is φ = 457344000.

The previous prime is 1445170967. The next prime is 1445171009. The reversal of 1445171000 is 1715441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445171009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83060 + ... + 98940.

It is an arithmetic number, because the mean of its divisors is an integer number (32518395).

Almost surely, 2^1445171000 is an apocalyptic number.

1445171000 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 1445171000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2081177280).

1445171000 is an abundant number, since it is smaller than the sum of its proper divisors (2717183560).

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

1445171000 is a wasteful number, since it uses less digits than its factorization.

1445171000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15922 (or 15908 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1445171000 is about 38015.4047722762. The cubic root of 1445171000 is about 1130.5933136084.

Adding to 1445171000 its reverse (1715441), we get a palindrome (1446886441).

The spelling of 1445171000 in words is "one billion, four hundred forty-five million, one hundred seventy-one thousand".