1445100000 has 144 divisors (see below), whose sum is σ = 4742415216. Its totient is φ = 385280000.

The previous prime is 1445099993. The next prime is 1445100053. The reversal of 1445100000 is 15441.

1445100000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297592 + ... + 302408.

It is an arithmetic number, because the mean of its divisors is an integer number (32933439).

Almost surely, 2^1445100000 is an apocalyptic number.

1445100000 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 1445100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2371207608).

1445100000 is an abundant number, since it is smaller than the sum of its proper divisors (3297315216).

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

1445100000 is an frugal number, since it uses more digits than its factorization.

1445100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855 (or 4827 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1445100000 is about 38014.4709288450. The cubic root of 1445100000 is about 1130.5747982817.

Adding to 1445100000 its reverse (15441), we get a palindrome (1445115441).

The spelling of 1445100000 in words is "one billion, four hundred forty-five million, one hundred thousand".