540213461 has 2 divisors, whose sum is σ = 540213462. Its totient is φ = 540213460.

The previous prime is 540213451. The next prime is 540213469. The reversal of 540213461 is 164312045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424112836 + 116100625 = 20594^2 + 10775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540213461 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 540213461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540213469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270106730 + 270106731.

It is an arithmetic number, because the mean of its divisors is an integer number (270106731).

Almost surely, 2^540213461 is an apocalyptic number.

It is an amenable number.

540213461 is a deficient number, since it is larger than the sum of its proper divisors (1).

540213461 is an equidigital number, since it uses as much as digits as its factorization.

540213461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 540213461 is about 23242.4925728718. The cubic root of 540213461 is about 814.4325712687.

The spelling of 540213461 in words is "five hundred forty million, two hundred thirteen thousand, four hundred sixty-one".