271234991 has 4 divisors (see below), whose sum is σ = 271270512. Its totient is φ = 271199472.

The previous prime is 271234933. The next prime is 271234993. The reversal of 271234991 is 199432172.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-271234991 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 (271234993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091 + ... + 23316.

It is an arithmetic number, because the mean of its divisors is an integer number (67817628).

Almost surely, 2^271234991 is an apocalyptic number.

271234991 is a deficient number, since it is larger than the sum of its proper divisors (35521).

271234991 is a wasteful number, since it uses less digits than its factorization.

271234991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35520.

The product of its digits is 27216, while the sum is 38.

The square root of 271234991 is about 16469.2134299122. The cubic root of 271234991 is about 647.3143555287.

The spelling of 271234991 in words is "two hundred seventy-one million, two hundred thirty-four thousand, nine hundred ninety-one".