145521225033420 has 24 divisors (see below), whose sum is σ = 407459430093744. Its totient is φ = 38805660008896.

The previous prime is 145521225033407. The next prime is 145521225033469. The reversal of 145521225033420 is 24330522125541.

145521225033420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212676875219 + ... + 1212676875338.

It is an arithmetic number, because the mean of its divisors is an integer number (16977476253906).

Almost surely, 2^{145521225033420} is an apocalyptic number.

145521225033420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145521225033420 is an abundant number, since it is smaller than the sum of its proper divisors (261938205060324).

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

145521225033420 is a wasteful number, since it uses less digits than its factorization.

145521225033420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425353750569 (or 2425353750567 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 145521225033420 its reverse (24330522125541), we get a palindrome (169851747158961).

The spelling of 145521225033420 in words is "one hundred forty-five trillion, five hundred twenty-one billion, two hundred twenty-five million, thirty-three thousand, four hundred twenty".