1445451500 has 48 divisors (see below), whose sum is σ = 3161077920. Its totient is φ = 577409600.

The previous prime is 1445451499. The next prime is 1445451529. The reversal of 1445451500 is 51545441.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508082 + ... + 510918.

It is an arithmetic number, because the mean of its divisors is an integer number (65855790).

Almost surely, 2^1445451500 is an apocalyptic number.

1445451500 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 1445451500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580538960).

1445451500 is an abundant number, since it is smaller than the sum of its proper divisors (1715626420).

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

1445451500 is a wasteful number, since it uses less digits than its factorization.

1445451500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875 (or 3863 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1445451500 is about 38019.0938871510. The cubic root of 1445451500 is about 1130.6664562582. Note that the first 3 decimals are identical.

Adding to 1445451500 its reverse (51545441), we get a palindrome (1496996941).

The spelling of 1445451500 in words is "one billion, four hundred forty-five million, four hundred fifty-one thousand, five hundred".