147808540 has 48 divisors (see below), whose sum is σ = 358543584. Its totient is φ = 50585600.

The previous prime is 147808519. The next prime is 147808571. The reversal of 147808540 is 45808741.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 147808540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16021 + ... + 23500.

It is an arithmetic number, because the mean of its divisors is an integer number (7469658).

Almost surely, 2^147808540 is an apocalyptic number.

147808540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147808540 is an abundant number, since it is smaller than the sum of its proper divisors (210735044).

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

147808540 is a wasteful number, since it uses less digits than its factorization.

147808540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39558 (or 39556 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 147808540 is about 12157.6535565051. The cubic root of 147808540 is about 528.7290538977.

The spelling of 147808540 in words is "one hundred forty-seven million, eight hundred eight thousand, five hundred forty".