545271071 has 4 divisors (see below), whose sum is σ = 549564672. Its totient is φ = 540977472.

The previous prime is 545271061. The next prime is 545271157. The reversal of 545271071 is 170172545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170172545 = 5 ⋅34034509.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545271071 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 (545271031) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2146610 + ... + 2146863.

It is an arithmetic number, because the mean of its divisors is an integer number (137391168).

Almost surely, 2^545271071 is an apocalyptic number.

545271071 is a deficient number, since it is larger than the sum of its proper divisors (4293601).

545271071 is a wasteful number, since it uses less digits than its factorization.

545271071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293600.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 545271071 is about 23351.0400410774. The cubic root of 545271071 is about 816.9663191551.

The spelling of 545271071 in words is "five hundred forty-five million, two hundred seventy-one thousand, seventy-one".