542461 has 2 divisors, whose sum is σ = 542462. Its totient is φ = 542460.

The previous prime is 542447. The next prime is 542467. The reversal of 542461 is 164245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 534361 + 8100 = 731^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 542461 - 2¹⁵ = 509693 is a prime.

542461 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271230 + 271231.

It is an arithmetic number, because the mean of its divisors is an integer number (271231).

2⁵⁴²⁴⁶¹ is an apocalyptic number.

It is an amenable number.

542461 is a deficient number, since it is larger than the sum of its proper divisors (1).

542461 is an equidigital number, since it uses as much as digits as its factorization.

542461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 542461 is about 736.5195177319. The cubic root of 542461 is about 81.5560481139.

The spelling of 542461 in words is "five hundred forty-two thousand, four hundred sixty-one".