271431745 has 12 divisors (see below), whose sum is σ = 352701756. Its totient is φ = 200441280.

The previous prime is 271431737. The next prime is 271431773. The reversal of 271431745 is 547134172.

It can be written as a sum of positive squares in 6 ways, for example, as 144576576 + 126855169 = 12024^2 + 11263^2 .

It is not a de Polignac number, because 271431745 - 2³ = 271431737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 271431745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159766 + ... + 161455.

It is an arithmetic number, because the mean of its divisors is an integer number (29391813).

Almost surely, 2^271431745 is an apocalyptic number.

It is an amenable number.

271431745 is a deficient number, since it is larger than the sum of its proper divisors (81270011).

271431745 is a wasteful number, since it uses less digits than its factorization.

271431745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321252 (or 321239 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 271431745 is about 16475.1857349166. The cubic root of 271431745 is about 647.4708384177.

The spelling of 271431745 in words is "two hundred seventy-one million, four hundred thirty-one thousand, seven hundred forty-five".