528539945 has 8 divisors (see below), whose sum is σ = 671556744. Its totient is φ = 397959424.

The previous prime is 528539927. The next prime is 528539951. The reversal of 528539945 is 549935825.

It can be written as a sum of positive squares in 4 ways, for example, as 5914624 + 522625321 = 2432^2 + 22861^2 .

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 528539945 - 2⁸ = 528539689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 528539893 and 528539902.

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 7 ways as a sum of consecutive naturals, for example, 3108974 + ... + 3109143.

It is an arithmetic number, because the mean of its divisors is an integer number (83944593).

Almost surely, 2^528539945 is an apocalyptic number.

It is an amenable number.

528539945 is a deficient number, since it is larger than the sum of its proper divisors (143016799).

528539945 is a wasteful number, since it uses less digits than its factorization.

528539945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218139.

The product of its digits is 1944000, while the sum is 50.

The square root of 528539945 is about 22989.9966289689. The cubic root of 528539945 is about 808.5234212913.

The spelling of 528539945 in words is "five hundred twenty-eight million, five hundred thirty-nine thousand, nine hundred forty-five".