528711121 has 2 divisors, whose sum is σ = 528711122. Its totient is φ = 528711120.

The previous prime is 528711083. The next prime is 528711163. The reversal of 528711121 is 121117825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 353440000 + 175271121 = 18800^2 + 13239^2 .

It is a cyclic number.

It is not a de Polignac number, because 528711121 - 2⁷ = 528710993 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 528711121.

It is not a weakly prime, because it can be changed into another prime (528711181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264355560 + 264355561.

It is an arithmetic number, because the mean of its divisors is an integer number (264355561).

Almost surely, 2^528711121 is an apocalyptic number.

It is an amenable number.

528711121 is a deficient number, since it is larger than the sum of its proper divisors (1).

528711121 is an equidigital number, since it uses as much as digits as its factorization.

528711121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120, while the sum is 28.

The square root of 528711121 is about 22993.7191641544. The cubic root of 528711121 is about 808.6106962255.

Adding to 528711121 its reverse (121117825), we get a palindrome (649828946).

The spelling of 528711121 in words is "five hundred twenty-eight million, seven hundred eleven thousand, one hundred twenty-one".