540163021 has 2 divisors, whose sum is σ = 540163022. Its totient is φ = 540163020.

The previous prime is 540162977. The next prime is 540163061. The reversal of 540163021 is 120361045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436224996 + 103938025 = 20886^2 + 10195^2 .

It is a cyclic number.

It is not a de Polignac number, because 540163021 - 2⁷ = 540162893 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 540162983 and 540163001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540163061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270081510 + 270081511.

It is an arithmetic number, because the mean of its divisors is an integer number (270081511).

Almost surely, 2^540163021 is an apocalyptic number.

It is an amenable number.

540163021 is a deficient number, since it is larger than the sum of its proper divisors (1).

540163021 is an equidigital number, since it uses as much as digits as its factorization.

540163021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 540163021 is about 23241.4074659862. The cubic root of 540163021 is about 814.4072224881.

The spelling of 540163021 in words is "five hundred forty million, one hundred sixty-three thousand, twenty-one".