145500302355021 has 8 divisors (see below), whose sum is σ = 215556003488960. Its totient is φ = 97000201569996.

The previous prime is 145500302354933. The next prime is 145500302355059. The reversal of 145500302355021 is 120553203005541.

145500302355021 is a `hidden beast` number, since 1 + 4 + 5 + 50 + 0 + 30 + 2 + 3 + 550 + 21 = 666.

It is not a de Polignac number, because 145500302355021 - 2¹⁷ = 145500302223949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145500302355071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2694450043585 + ... + 2694450043638.

It is an arithmetic number, because the mean of its divisors is an integer number (26944500436120).

Almost surely, 2^{145500302355021} is an apocalyptic number.

It is an amenable number.

145500302355021 is a deficient number, since it is larger than the sum of its proper divisors (70055701133939).

145500302355021 is an equidigital number, since it uses as much as digits as its factorization.

145500302355021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388900087232 (or 5388900087226 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 145500302355021 in words is "one hundred forty-five trillion, five hundred billion, three hundred two million, three hundred fifty-five thousand, twenty-one".