540646171 has 4 divisors (see below), whose sum is σ = 582234352. Its totient is φ = 499057992.

The previous prime is 540646151. The next prime is 540646187. The reversal of 540646171 is 171646045.

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

It is a cyclic number.

It is not a de Polignac number, because 540646171 - 2¹⁷ = 540515099 is a prime.

It is a super-2 number, since 2×540646171² = 584596564433922482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540646151) 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, 20794071 + ... + 20794096.

It is an arithmetic number, because the mean of its divisors is an integer number (145558588).

Almost surely, 2^540646171 is an apocalyptic number.

540646171 is a deficient number, since it is larger than the sum of its proper divisors (41588181).

540646171 is a wasteful number, since it uses less digits than its factorization.

540646171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41588180.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 540646171 is about 23251.7993067203. The cubic root of 540646171 is about 814.6499662376.

The spelling of 540646171 in words is "five hundred forty million, six hundred forty-six thousand, one hundred seventy-one".