542687741 has 2 divisors, whose sum is σ = 542687742. Its totient is φ = 542687740.

The previous prime is 542687731. The next prime is 542687777. The reversal of 542687741 is 147786245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521939716 + 20748025 = 22846^2 + 4555^2 .

It is a cyclic number.

It is not a de Polignac number, because 542687741 - 2¹⁰ = 542686717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 542687692 and 542687701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542687711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271343870 + 271343871.

It is an arithmetic number, because the mean of its divisors is an integer number (271343871).

Almost surely, 2^542687741 is an apocalyptic number.

It is an amenable number.

542687741 is a deficient number, since it is larger than the sum of its proper divisors (1).

542687741 is an equidigital number, since it uses as much as digits as its factorization.

542687741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 44.

The square root of 542687741 is about 23295.6592737789. The cubic root of 542687741 is about 815.6740962133.

The spelling of 542687741 in words is "five hundred forty-two million, six hundred eighty-seven thousand, seven hundred forty-one".