540841949 has 2 divisors, whose sum is σ = 540841950. Its totient is φ = 540841948.

The previous prime is 540841891. The next prime is 540841957. The reversal of 540841949 is 949148045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285001924 + 255840025 = 16882^2 + 15995^2 .

It is a cyclic number.

It is not a de Polignac number, because 540841949 - 2¹⁶ = 540776413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540841969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270420974 + 270420975.

It is an arithmetic number, because the mean of its divisors is an integer number (270420975).

Almost surely, 2^540841949 is an apocalyptic number.

It is an amenable number.

540841949 is a deficient number, since it is larger than the sum of its proper divisors (1).

540841949 is an equidigital number, since it uses as much as digits as its factorization.

540841949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 540841949 is about 23256.0088794273. The cubic root of 540841949 is about 814.7482876550.

The spelling of 540841949 in words is "five hundred forty million, eight hundred forty-one thousand, nine hundred forty-nine".