542845015 has 4 divisors (see below), whose sum is σ = 651414024. Its totient is φ = 434276008.

The previous prime is 542844923. The next prime is 542845033. The reversal of 542845015 is 510548245.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 542845015 - 2²¹ = 540747863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54284497 + ... + 54284506.

It is an arithmetic number, because the mean of its divisors is an integer number (162853506).

Almost surely, 2^542845015 is an apocalyptic number.

542845015 is a deficient number, since it is larger than the sum of its proper divisors (108569009).

542845015 is a wasteful number, since it uses less digits than its factorization.

542845015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108569008.

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 542845015 is about 23299.0346366539. The cubic root of 542845015 is about 815.7528842698.

The spelling of 542845015 in words is "five hundred forty-two million, eight hundred forty-five thousand, fifteen".