1445322120500 has 48 divisors (see below), whose sum is σ = 3179624417424. Its totient is φ = 573908902400.

The previous prime is 1445322120467. The next prime is 1445322120509. The reversal of 1445322120500 is 50212235441.

It can be written as a sum of positive squares in 8 ways, for example, as 937047232144 + 508274888356 = 968012^2 + 712934^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445322120509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10481297 + ... + 10618296.

It is an arithmetic number, because the mean of its divisors is an integer number (66242175363).

Almost surely, 2^{1445322120500} is an apocalyptic number.

1445322120500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445322120500 is an abundant number, since it is smaller than the sum of its proper divisors (1734302296924).

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

1445322120500 is a wasteful number, since it uses less digits than its factorization.

1445322120500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21099749 (or 21099737 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 1445322120500 its reverse (50212235441), we get a palindrome (1495534355941).

The spelling of 1445322120500 in words is "one trillion, four hundred forty-five billion, three hundred twenty-two million, one hundred twenty thousand, five hundred".