542105045 has 8 divisors (see below), whose sum is σ = 652606296. Its totient is φ = 432297216.

The previous prime is 542105021. The next prime is 542105063. The reversal of 542105045 is 540501245.

It can be written as a sum of positive squares in 4 ways, for example, as 25633969 + 516471076 = 5063^2 + 22726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542105045 - 2¹⁰ = 542104021 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171632 + ... + 174761.

It is an arithmetic number, because the mean of its divisors is an integer number (81575787).

Almost surely, 2^542105045 is an apocalyptic number.

It is an amenable number.

542105045 is a deficient number, since it is larger than the sum of its proper divisors (110501251).

542105045 is a wasteful number, since it uses less digits than its factorization.

542105045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346711.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 542105045 is about 23283.1493788963. The cubic root of 542105045 is about 815.3820558073.

The spelling of 542105045 in words is "five hundred forty-two million, one hundred five thousand, forty-five".