147814189 has 4 divisors (see below), whose sum is σ = 152911260. Its totient is φ = 142717120.

The previous prime is 147814171. The next prime is 147814229. The reversal of 147814189 is 981418741.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61936900 + 85877289 = 7870^2 + 9267^2 .

It is not a de Polignac number, because 147814189 - 2¹¹ = 147812141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147814489) 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 3 ways as a sum of consecutive naturals, for example, 2548492 + ... + 2548549.

It is an arithmetic number, because the mean of its divisors is an integer number (38227815).

Almost surely, 2^147814189 is an apocalyptic number.

It is an amenable number.

147814189 is a deficient number, since it is larger than the sum of its proper divisors (5097071).

147814189 is an equidigital number, since it uses as much as digits as its factorization.

147814189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097070.

The product of its digits is 64512, while the sum is 43.

The square root of 147814189 is about 12157.8858770758. The cubic root of 147814189 is about 528.7357895310.

The spelling of 147814189 in words is "one hundred forty-seven million, eight hundred fourteen thousand, one hundred eighty-nine".