145020335420 has 24 divisors (see below), whose sum is σ = 311625094704. Its totient is φ = 56659107456.

The previous prime is 145020335387. The next prime is 145020335441. The reversal of 145020335420 is 24533020541.

It is a happy number.

145020335420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84313289 + ... + 84315008.

It is an arithmetic number, because the mean of its divisors is an integer number (12984378946).

Almost surely, 2^145020335420 is an apocalyptic number.

145020335420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145020335420 is an abundant number, since it is smaller than the sum of its proper divisors (166604759284).

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

145020335420 is a wasteful number, since it uses less digits than its factorization.

145020335420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168628349 (or 168628347 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 145020335420 its reverse (24533020541), we get a palindrome (169553355961).

The spelling of 145020335420 in words is "one hundred forty-five billion, twenty million, three hundred thirty-five thousand, four hundred twenty".