542771443 has 4 divisors (see below), whose sum is σ = 542820208. Its totient is φ = 542722680.

The previous prime is 542771441. The next prime is 542771459. The reversal of 542771443 is 344177245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 344177245 = 5 ⋅68835449.

It is a cyclic number.

It is not a de Polignac number, because 542771443 - 2¹ = 542771441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542771441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1405 + ... + 32977.

It is an arithmetic number, because the mean of its divisors is an integer number (135705052).

Almost surely, 2^542771443 is an apocalyptic number.

542771443 is a deficient number, since it is larger than the sum of its proper divisors (48765).

542771443 is a wasteful number, since it uses less digits than its factorization.

542771443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48764.

The product of its digits is 94080, while the sum is 37.

The square root of 542771443 is about 23297.4557194557. The cubic root of 542771443 is about 815.7160295009.

The spelling of 542771443 in words is "five hundred forty-two million, seven hundred seventy-one thousand, four hundred forty-three".