542709245 has 16 divisors (see below), whose sum is σ = 704997552. Its totient is φ = 398684160.

The previous prime is 542709239. The next prime is 542709263. The reversal of 542709245 is 542907245.

542709245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 73856836 + 468852409 = 8594^2 + 21653^2 .

It is a de Polignac number, because none of the positive numbers 2^k-542709245 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542709199 and 542709208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9086 + ... + 34175.

It is an arithmetic number, because the mean of its divisors is an integer number (44062347).

Almost surely, 2^542709245 is an apocalyptic number.

It is an amenable number.

542709245 is a deficient number, since it is larger than the sum of its proper divisors (162288307).

542709245 is a wasteful number, since it uses less digits than its factorization.

542709245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43472.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 542709245 is about 23296.1208144189. The cubic root of 542709245 is about 815.6848697654.

The spelling of 542709245 in words is "five hundred forty-two million, seven hundred nine thousand, two hundred forty-five".