147307820 has 72 divisors (see below), whose sum is σ = 351918000. Its totient is φ = 51694720.

The previous prime is 147307813. The next prime is 147307843. The reversal of 147307820 is 28703741.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69131 + ... + 71229.

It is an arithmetic number, because the mean of its divisors is an integer number (4887750).

Almost surely, 2^147307820 is an apocalyptic number.

147307820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147307820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175959000).

147307820 is an abundant number, since it is smaller than the sum of its proper divisors (204610180).

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

147307820 is a wasteful number, since it uses less digits than its factorization.

147307820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 147307820 is about 12137.0432972780. The cubic root of 147307820 is about 528.1313330707.

The spelling of 147307820 in words is "one hundred forty-seven million, three hundred seven thousand, eight hundred twenty".