271890189 has 20 divisors (see below), whose sum is σ = 407733216. Its totient is φ = 180556776.

The previous prime is 271890187. The next prime is 271890191. The reversal of 271890189 is 981098172.

It is an interprime number because it is at equal distance from previous prime (271890187) and next prime (271890191).

It is not a de Polignac number, because 271890189 - 2¹ = 271890187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271890187) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 14922 + ... + 27684.

Almost surely, 2^271890189 is an apocalyptic number.

It is an amenable number.

271890189 is a deficient number, since it is larger than the sum of its proper divisors (135843027).

271890189 is a wasteful number, since it uses less digits than its factorization.

271890189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13038 (or 13029 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 271890189 is about 16489.0930314557. The cubic root of 271890189 is about 647.8351561144.

The spelling of 271890189 in words is "two hundred seventy-one million, eight hundred ninety thousand, one hundred eighty-nine".