271540678 has 4 divisors (see below), whose sum is σ = 407311020. Its totient is φ = 135770338.

The previous prime is 271540639. The next prime is 271540679. The reversal of 271540678 is 876045172.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 271540678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271540679) 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 as a sum of consecutive naturals, namely, 67885168 + ... + 67885171.

It is an arithmetic number, because the mean of its divisors is an integer number (101827755).

Almost surely, 2^271540678 is an apocalyptic number.

271540678 is a deficient number, since it is larger than the sum of its proper divisors (135770342).

271540678 is a wasteful number, since it uses less digits than its factorization.

271540678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135770341.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 271540678 is about 16478.4913751229. The cubic root of 271540678 is about 647.5574427654.

The spelling of 271540678 in words is "two hundred seventy-one million, five hundred forty thousand, six hundred seventy-eight".