147189271 has 6 divisors (see below), whose sum is σ = 152007072. Its totient is φ = 142375860.

The previous prime is 147189223. The next prime is 147189283. The reversal of 147189271 is 172981741.

It is not a de Polignac number, because 147189271 - 2¹¹ = 147187223 is a prime.

It is a super-2 number, since 2×147189271² = 43329362995022882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147186271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66460 + ... + 68638.

It is an arithmetic number, because the mean of its divisors is an integer number (25334512).

Almost surely, 2^147189271 is an apocalyptic number.

147189271 is a deficient number, since it is larger than the sum of its proper divisors (4817801).

147189271 is an frugal number, since it uses more digits than its factorization.

147189271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389 (or 2210 counting only the distinct ones).

The product of its digits is 28224, while the sum is 40.

The square root of 147189271 is about 12132.1585466066. The cubic root of 147189271 is about 527.9896201950.

The spelling of 147189271 in words is "one hundred forty-seven million, one hundred eighty-nine thousand, two hundred seventy-one".