1445301000520 has 256 divisors, whose sum is σ = 3682773319680. Its totient is φ = 506827238400.

The previous prime is 1445301000491. The next prime is 1445301000529. The reversal of 1445301000520 is 250001035441.

It is a happy number.

It is a super-2 number, since 2×1445301000520² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1445301000529) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 259803259 + ... + 259808821.

It is an arithmetic number, because the mean of its divisors is an integer number (14385833280).

Almost surely, 2^{1445301000520} is an apocalyptic number.

1445301000520 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 1445301000520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1841386659840).

1445301000520 is an abundant number, since it is smaller than the sum of its proper divisors (2237472319160).

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

1445301000520 is a wasteful number, since it uses less digits than its factorization.

1445301000520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916 (or 5912 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 1445301000520 its reverse (250001035441), we get a palindrome (1695302035961).

The spelling of 1445301000520 in words is "one trillion, four hundred forty-five billion, three hundred one million, five hundred twenty", and thus it is an aban number.