528204137 has 8 divisors (see below), whose sum is σ = 532513704. Its totient is φ = 523911168.

The previous prime is 528204097. The next prime is 528204139. The reversal of 528204137 is 731402825.

It can be written as a sum of positive squares in 4 ways, for example, as 153239641 + 374964496 = 12379^2 + 19364^2 .

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 528204137 - 2¹⁴ = 528187753 is a prime.

It is a super-2 number, since 2×528204137² = 557999220687829538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528204139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64253 + ... + 72005.

It is an arithmetic number, because the mean of its divisors is an integer number (66564213).

Almost surely, 2^528204137 is an apocalyptic number.

It is an amenable number.

528204137 is a deficient number, since it is larger than the sum of its proper divisors (4309567).

528204137 is a wasteful number, since it uses less digits than its factorization.

528204137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8299.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 528204137 is about 22982.6921182006. The cubic root of 528204137 is about 808.3521531547.

The spelling of 528204137 in words is "five hundred twenty-eight million, two hundred four thousand, one hundred thirty-seven".