147435220 has 24 divisors (see below), whose sum is σ = 327827304. Its totient is φ = 55504896.

The previous prime is 147435191. The next prime is 147435227. The reversal of 147435220 is 22534741.

147435220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3147076 + 144288144 = 1774^2 + 12012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147435227) 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, 216477 + ... + 217156.

It is an arithmetic number, because the mean of its divisors is an integer number (13659471).

Almost surely, 2^147435220 is an apocalyptic number.

147435220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147435220 is an abundant number, since it is smaller than the sum of its proper divisors (180392084).

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

147435220 is a wasteful number, since it uses less digits than its factorization.

147435220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433659 (or 433657 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 147435220 is about 12142.2905582102. The cubic root of 147435220 is about 528.2835416549.

Adding to 147435220 its reverse (22534741), we get a palindrome (169969961).

The spelling of 147435220 in words is "one hundred forty-seven million, four hundred thirty-five thousand, two hundred twenty".