1445322120452 has 48 divisors (see below), whose sum is σ = 2908135386240. Its totient is φ = 615677594112.

The previous prime is 1445322120427. The next prime is 1445322120467. The reversal of 1445322120452 is 2540212235441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18887324 + ... + 18963692.

It is an arithmetic number, because the mean of its divisors is an integer number (60586153880).

Almost surely, 2^{1445322120452} is an apocalyptic number.

It is an amenable number.

1445322120452 is an abundant number, since it is smaller than the sum of its proper divisors (1462813265788).

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

1445322120452 is a wasteful number, since it uses less digits than its factorization.

1445322120452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80460 (or 80458 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 1445322120452 its reverse (2540212235441), we get a palindrome (3985534355893).

The spelling of 1445322120452 in words is "one trillion, four hundred forty-five billion, three hundred twenty-two million, one hundred twenty thousand, four hundred fifty-two".