1445254214420 has 12 divisors (see below), whose sum is σ = 3035033850324. Its totient is φ = 578101685760.

The previous prime is 1445254214419. The next prime is 1445254214429. The reversal of 1445254214420 is 244124525441.

It can be written as a sum of positive squares in 2 ways, for example, as 502890885904 + 942363328516 = 709148^2 + 970754^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445254214429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36131355341 + ... + 36131355380.

It is an arithmetic number, because the mean of its divisors is an integer number (252919487527).

Almost surely, 2^{1445254214420} is an apocalyptic number.

1445254214420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445254214420 is an abundant number, since it is smaller than the sum of its proper divisors (1589779635904).

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

1445254214420 is a wasteful number, since it uses less digits than its factorization.

1445254214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72262710730 (or 72262710728 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 38.

Adding to 1445254214420 its reverse (244124525441), we get a palindrome (1689378739861).

The spelling of 1445254214420 in words is "one trillion, four hundred forty-five billion, two hundred fifty-four million, two hundred fourteen thousand, four hundred twenty".