271688057 has 4 divisors (see below), whose sum is σ = 272047716. Its totient is φ = 271328400.

The previous prime is 271688051. The next prime is 271688063. The reversal of 271688057 is 750886172.

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

It is an interprime number because it is at equal distance from previous prime (271688051) and next prime (271688063).

It can be written as a sum of positive squares in 2 ways, for example, as 239754256 + 31933801 = 15484^2 + 5651^2 .

It is a cyclic number.

It is not a de Polignac number, because 271688057 - 2¹² = 271683961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 271687999 and 271688017.

It is not an unprimeable number, because it can be changed into a prime (271688051) 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, 178694 + ... + 180207.

It is an arithmetic number, because the mean of its divisors is an integer number (68011929).

Almost surely, 2^271688057 is an apocalyptic number.

It is an amenable number.

271688057 is a deficient number, since it is larger than the sum of its proper divisors (359659).

271688057 is an equidigital number, since it uses as much as digits as its factorization.

271688057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359658.

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 271688057 is about 16482.9626281200. The cubic root of 271688057 is about 647.6745757467.

The spelling of 271688057 in words is "two hundred seventy-one million, six hundred eighty-eight thousand, fifty-seven".