147208189 has 8 divisors (see below), whose sum is σ = 152447832. Its totient is φ = 142059840.

The previous prime is 147208121. The next prime is 147208213. The reversal of 147208189 is 981802741.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6002500 + 141205689 = 2450^2 + 11883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147208189 - 2⁹ = 147207677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147208889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19534 + ... + 25999.

It is an arithmetic number, because the mean of its divisors is an integer number (19055979).

Almost surely, 2^147208189 is an apocalyptic number.

It is an amenable number.

147208189 is a deficient number, since it is larger than the sum of its proper divisors (5239643).

147208189 is an equidigital number, since it uses as much as digits as its factorization.

147208189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45647.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 147208189 is about 12132.9381849575. The cubic root of 147208189 is about 528.0122397779.

The spelling of 147208189 in words is "one hundred forty-seven million, two hundred eight thousand, one hundred eighty-nine".