542111545 has 4 divisors (see below), whose sum is σ = 650533860. Its totient is φ = 433689232.

The previous prime is 542111543. The next prime is 542111561. The reversal of 542111545 is 545111245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192571129 + 349540416 = 13877^2 + 18696^2 .

It is a cyclic number.

It is not a de Polignac number, because 542111545 - 2¹ = 542111543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542111543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54211150 + ... + 54211159.

It is an arithmetic number, because the mean of its divisors is an integer number (162633465).

Almost surely, 2^542111545 is an apocalyptic number.

It is an amenable number.

542111545 is a deficient number, since it is larger than the sum of its proper divisors (108422315).

542111545 is a wasteful number, since it uses less digits than its factorization.

542111545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108422314.

The product of its digits is 4000, while the sum is 28.

The square root of 542111545 is about 23283.2889644054. The cubic root of 542111545 is about 815.3853146850.

The spelling of 542111545 in words is "five hundred forty-two million, one hundred eleven thousand, five hundred forty-five".