542640713 has 4 divisors (see below), whose sum is σ = 542947860. Its totient is φ = 542333568.

The previous prime is 542640701. The next prime is 542640733. The reversal of 542640713 is 317046245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317046245 = 5 ⋅63409249.

It can be written as a sum of positive squares in 2 ways, for example, as 298874944 + 243765769 = 17288^2 + 15613^2 .

It is a cyclic number.

It is not a de Polignac number, because 542640713 - 2⁶ = 542640649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542640713.

It is not an unprimeable number, because it can be changed into a prime (542640733) 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, 150908 + ... + 154461.

It is an arithmetic number, because the mean of its divisors is an integer number (135736965).

Almost surely, 2^542640713 is an apocalyptic number.

It is an amenable number.

542640713 is a deficient number, since it is larger than the sum of its proper divisors (307147).

542640713 is a wasteful number, since it uses less digits than its factorization.

542640713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307146.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 542640713 is about 23294.6498793178. The cubic root of 542640713 is about 815.6505340880.

Adding to 542640713 its reverse (317046245), we get a palindrome (859686958).

The spelling of 542640713 in words is "five hundred forty-two million, six hundred forty thousand, seven hundred thirteen".