145003005244221 has 8 divisors (see below), whose sum is σ = 193337803555680. Its totient is φ = 96668438547792.

The previous prime is 145003005244211. The next prime is 145003005244249. The reversal of 145003005244221 is 122442500300541.

145003005244221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145003005244221 - 2¹⁷ = 145003005113149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145003005244211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56437666 + ... + 58950963.

It is an arithmetic number, because the mean of its divisors is an integer number (24167225444460).

Almost surely, 2^{145003005244221} is an apocalyptic number.

It is an amenable number.

145003005244221 is a deficient number, since it is larger than the sum of its proper divisors (48334798311459).

145003005244221 is a wasteful number, since it uses less digits than its factorization.

145003005244221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115807515.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 145003005244221 its reverse (122442500300541), we get a palindrome (267445505544762).

The spelling of 145003005244221 in words is "one hundred forty-five trillion, three billion, five million, two hundred forty-four thousand, two hundred twenty-one".