540020671 has 2 divisors, whose sum is σ = 540020672. Its totient is φ = 540020670.

The previous prime is 540020669. The next prime is 540020693. The reversal of 540020671 is 176020045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540020671 - 2¹ = 540020669 is a prime.

Together with 540020669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540020171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270010335 + 270010336.

It is an arithmetic number, because the mean of its divisors is an integer number (270010336).

Almost surely, 2^540020671 is an apocalyptic number.

540020671 is a deficient number, since it is larger than the sum of its proper divisors (1).

540020671 is an equidigital number, since it uses as much as digits as its factorization.

540020671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 540020671 is about 23238.3448420923. The cubic root of 540020671 is about 814.3356755360.

The spelling of 540020671 in words is "five hundred forty million, twenty thousand, six hundred seventy-one".